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Finding the Fourth Proportional to 371,085.57, 557,395.02 and 354,913.92

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Solution

The fourth proportional to 371,085.57, 557,395.02 and 354,913.92 is: 533,104.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,085.57 : 557,395.02 = 354,913.92 : x
  2. Step 2: Convert to fraction form
    371,085.57/557,395.02 = 354,913.92/x
  3. Step 3: Cross multiply
    371,085.57x = 557,395.02 × 354,913.92
  4. Step 4: Simplify right side
    371,085.57x = 197,827,251,536.68
  5. Step 5: Solve for x
    x = 197,827,251,536.68/371,085.57
  6. Step 6: Final answer
    x = 533,104.13

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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.