Home / 819,095.60-1,228,643.40-286,561.10

Finding the Fourth Proportional to 819,095.60, 1,228,643.40 and 286,561.10

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Solution

The fourth proportional to 819,095.60, 1,228,643.40 and 286,561.10 is: 429,841.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,095.60 : 1,228,643.40 = 286,561.10 : x
  2. Step 2: Convert to fraction form
    819,095.60/1,228,643.40 = 286,561.10/x
  3. Step 3: Cross multiply
    819,095.60x = 1,228,643.40 × 286,561.10
  4. Step 4: Simplify right side
    819,095.60x = 352,081,404,211.74
  5. Step 5: Solve for x
    x = 352,081,404,211.74/819,095.60
  6. Step 6: Final answer
    x = 429,841.65

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Double scale
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Similar ratio
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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.