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Finding the Fourth Proportional to 373,204.72, 514,705.56 and 315,344.92

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Solution

The fourth proportional to 373,204.72, 514,705.56 and 315,344.92 is: 434,908.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,204.72 : 514,705.56 = 315,344.92 : x
  2. Step 2: Convert to fraction form
    373,204.72/514,705.56 = 315,344.92/x
  3. Step 3: Cross multiply
    373,204.72x = 514,705.56 × 315,344.92
  4. Step 4: Simplify right side
    373,204.72x = 162,309,783,641.76
  5. Step 5: Solve for x
    x = 162,309,783,641.76/373,204.72
  6. Step 6: Final answer
    x = 434,908.17

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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.