Home / 813,069.17-1,121,997.65-445,544.13

Finding the Fourth Proportional to 813,069.17, 1,121,997.65 and 445,544.13

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Solution

The fourth proportional to 813,069.17, 1,121,997.65 and 445,544.13 is: 614,830.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,069.17 : 1,121,997.65 = 445,544.13 : x
  2. Step 2: Convert to fraction form
    813,069.17/1,121,997.65 = 445,544.13/x
  3. Step 3: Cross multiply
    813,069.17x = 1,121,997.65 × 445,544.13
  4. Step 4: Simplify right side
    813,069.17x = 499,899,466,831.29
  5. Step 5: Solve for x
    x = 499,899,466,831.29/813,069.17
  6. Step 6: Final answer
    x = 614,830.18

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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.