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Finding the Fourth Proportional to 348,613.56, 522,920.34 and 243,637.56

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Solution

The fourth proportional to 348,613.56, 522,920.34 and 243,637.56 is: 365,456.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,613.56 : 522,920.34 = 243,637.56 : x
  2. Step 2: Convert to fraction form
    348,613.56/522,920.34 = 243,637.56/x
  3. Step 3: Cross multiply
    348,613.56x = 522,920.34 × 243,637.56
  4. Step 4: Simplify right side
    348,613.56x = 127,403,035,711.97
  5. Step 5: Solve for x
    x = 127,403,035,711.97/348,613.56
  6. Step 6: Final answer
    x = 365,456.34

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1.5x scale

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.