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Finding the Fourth Proportional to 506,376.48, 759,730.92 and 207,108.72

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Solution

The fourth proportional to 506,376.48, 759,730.92 and 207,108.72 is: 310,731.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,376.48 : 759,730.92 = 207,108.72 : x
  2. Step 2: Convert to fraction form
    506,376.48/759,730.92 = 207,108.72/x
  3. Step 3: Cross multiply
    506,376.48x = 759,730.92 × 207,108.72
  4. Step 4: Simplify right side
    506,376.48x = 157,346,898,385.62
  5. Step 5: Solve for x
    x = 157,346,898,385.62/506,376.48
  6. Step 6: Final answer
    x = 310,731.06

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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.