Home / 826,595,387.12-1,140,701,696.60-455,317,418.50

Finding the Fourth Proportional to 826,595,387.12, 1,140,701,696.60 and 455,317,418.50

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Solution

The fourth proportional to 826,595,387.12, 1,140,701,696.60 and 455,317,418.50 is: 628,338,071.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,595,387.12 : 1,140,701,696.60 = 455,317,418.50 : x
  2. Step 2: Convert to fraction form
    826,595,387.12/1,140,701,696.60 = 455,317,418.50/x
  3. Step 3: Cross multiply
    826,595,387.12x = 1,140,701,696.60 × 455,317,418.50
  4. Step 4: Simplify right side
    826,595,387.12x = 519,381,351,769,353,920
  5. Step 5: Solve for x
    x = 519,381,351,769,353,920/826,595,387.12
  6. Step 6: Final answer
    x = 628,338,071.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.