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Finding the Fourth Proportional to 415,037.76, 621,558.63 and 237,005.16

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Solution

The fourth proportional to 415,037.76, 621,558.63 and 237,005.16 is: 354,937.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,037.76 : 621,558.63 = 237,005.16 : x
  2. Step 2: Convert to fraction form
    415,037.76/621,558.63 = 237,005.16/x
  3. Step 3: Cross multiply
    415,037.76x = 621,558.63 × 237,005.16
  4. Step 4: Simplify right side
    415,037.76x = 147,312,602,552.53
  5. Step 5: Solve for x
    x = 147,312,602,552.53/415,037.76
  6. Step 6: Final answer
    x = 354,937.83

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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.