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Finding the Fourth Proportional to 696,407.72, 960,688.96 and 454,831.70

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Solution

The fourth proportional to 696,407.72, 960,688.96 and 454,831.70 is: 627,436.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,407.72 : 960,688.96 = 454,831.70 : x
  2. Step 2: Convert to fraction form
    696,407.72/960,688.96 = 454,831.70/x
  3. Step 3: Cross multiply
    696,407.72x = 960,688.96 × 454,831.70
  4. Step 4: Simplify right side
    696,407.72x = 436,951,795,818.29
  5. Step 5: Solve for x
    x = 436,951,795,818.29/696,407.72
  6. Step 6: Final answer
    x = 627,436.75

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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.