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Finding the Fourth Proportional to 360,693.90, 497,730.15 and 199,545.50

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Solution

The fourth proportional to 360,693.90, 497,730.15 and 199,545.50 is: 275,357.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,693.90 : 497,730.15 = 199,545.50 : x
  2. Step 2: Convert to fraction form
    360,693.90/497,730.15 = 199,545.50/x
  3. Step 3: Cross multiply
    360,693.90x = 497,730.15 × 199,545.50
  4. Step 4: Simplify right side
    360,693.90x = 99,319,812,891.15
  5. Step 5: Solve for x
    x = 99,319,812,891.15/360,693.90
  6. Step 6: Final answer
    x = 275,357.62

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1.5x scale

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.