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Finding the Fourth Proportional to 615,617.11, 922,023.15 and 503,129.17

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Solution

The fourth proportional to 615,617.11, 922,023.15 and 503,129.17 is: 753,547.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,617.11 : 922,023.15 = 503,129.17 : x
  2. Step 2: Convert to fraction form
    615,617.11/922,023.15 = 503,129.17/x
  3. Step 3: Cross multiply
    615,617.11x = 922,023.15 × 503,129.17
  4. Step 4: Simplify right side
    615,617.11x = 463,896,742,180.29
  5. Step 5: Solve for x
    x = 463,896,742,180.29/615,617.11
  6. Step 6: Final answer
    x = 753,547.51

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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.