Home / 910,952,025.20-1,257,115,505.11-509,065,776.88

Finding the Fourth Proportional to 910,952,025.20, 1,257,115,505.11 and 509,065,776.88

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Solution

The fourth proportional to 910,952,025.20, 1,257,115,505.11 and 509,065,776.88 is: 702,511,727.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,952,025.20 : 1,257,115,505.11 = 509,065,776.88 : x
  2. Step 2: Convert to fraction form
    910,952,025.20/1,257,115,505.11 = 509,065,776.88/x
  3. Step 3: Cross multiply
    910,952,025.20x = 1,257,115,505.11 × 509,065,776.88
  4. Step 4: Simplify right side
    910,952,025.20x = 639,954,481,232,300,288
  5. Step 5: Solve for x
    x = 639,954,481,232,300,288/910,952,025.20
  6. Step 6: Final answer
    x = 702,511,727.87

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Double scale
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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.