Home / 521,557,055,998.80-782,335,583,998.20-417,071,503,870.80

Finding the Fourth Proportional to 521,557,055,998.80, 782,335,583,998.20 and 417,071,503,870.80

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Solution

The fourth proportional to 521,557,055,998.80, 782,335,583,998.20 and 417,071,503,870.80 is: 625,607,255,806.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,557,055,998.80 : 782,335,583,998.20 = 417,071,503,870.80 : x
  2. Step 2: Convert to fraction form
    521,557,055,998.80/782,335,583,998.20 = 417,071,503,870.80/x
  3. Step 3: Cross multiply
    521,557,055,998.80x = 782,335,583,998.20 × 417,071,503,870.80
  4. Step 4: Simplify right side
    521,557,055,998.80x = 326,289,878,549,769,832,366,080
  5. Step 5: Solve for x
    x = 326,289,878,549,769,832,366,080/521,557,055,998.80
  6. Step 6: Final answer
    x = 625,607,255,806.20

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.