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Finding the Fourth Proportional to 555,705.12, 832,671.92 and 355,861.10

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Solution

The fourth proportional to 555,705.12, 832,671.92 and 355,861.10 is: 533,224.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,705.12 : 832,671.92 = 355,861.10 : x
  2. Step 2: Convert to fraction form
    555,705.12/832,671.92 = 355,861.10/x
  3. Step 3: Cross multiply
    555,705.12x = 832,671.92 × 355,861.10
  4. Step 4: Simplify right side
    555,705.12x = 296,315,545,390.31
  5. Step 5: Solve for x
    x = 296,315,545,390.31/555,705.12
  6. Step 6: Final answer
    x = 533,224.43

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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.