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Finding the Fourth Proportional to 402,970.96, 555,572.85 and 292,490.29

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Solution

The fourth proportional to 402,970.96, 555,572.85 and 292,490.29 is: 403,254.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,970.96 : 555,572.85 = 292,490.29 : x
  2. Step 2: Convert to fraction form
    402,970.96/555,572.85 = 292,490.29/x
  3. Step 3: Cross multiply
    402,970.96x = 555,572.85 × 292,490.29
  4. Step 4: Simplify right side
    402,970.96x = 162,499,661,234.76
  5. Step 5: Solve for x
    x = 162,499,661,234.76/402,970.96
  6. Step 6: Final answer
    x = 403,254.03

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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.