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Finding the Fourth Proportional to 514,864.04, 770,680.38 and 354,001.28

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Solution

The fourth proportional to 514,864.04, 770,680.38 and 354,001.28 is: 529,891.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,864.04 : 770,680.38 = 354,001.28 : x
  2. Step 2: Convert to fraction form
    514,864.04/770,680.38 = 354,001.28/x
  3. Step 3: Cross multiply
    514,864.04x = 770,680.38 × 354,001.28
  4. Step 4: Simplify right side
    514,864.04x = 272,821,840,990.89
  5. Step 5: Solve for x
    x = 272,821,840,990.89/514,864.04
  6. Step 6: Final answer
    x = 529,891.04

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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.