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Finding the Fourth Proportional to 621,038.60, 932,104.65 and 368,002.70

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Solution

The fourth proportional to 621,038.60, 932,104.65 and 368,002.70 is: 552,328.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,038.60 : 932,104.65 = 368,002.70 : x
  2. Step 2: Convert to fraction form
    621,038.60/932,104.65 = 368,002.70/x
  3. Step 3: Cross multiply
    621,038.60x = 932,104.65 × 368,002.70
  4. Step 4: Simplify right side
    621,038.60x = 343,017,027,882.56
  5. Step 5: Solve for x
    x = 343,017,027,882.56/621,038.60
  6. Step 6: Final answer
    x = 552,328.03

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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.