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Finding the Fourth Proportional to 696,373.74, 961,414.92 and 455,060.16

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Solution

The fourth proportional to 696,373.74, 961,414.92 and 455,060.16 is: 628,256.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,373.74 : 961,414.92 = 455,060.16 : x
  2. Step 2: Convert to fraction form
    696,373.74/961,414.92 = 455,060.16/x
  3. Step 3: Cross multiply
    696,373.74x = 961,414.92 × 455,060.16
  4. Step 4: Simplify right side
    696,373.74x = 437,501,627,321.59
  5. Step 5: Solve for x
    x = 437,501,627,321.59/696,373.74
  6. Step 6: Final answer
    x = 628,256.93

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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.