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Finding the Fourth Proportional to 562,278.92, 775,956.11 and 307,635.57

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Solution

The fourth proportional to 562,278.92, 775,956.11 and 307,635.57 is: 424,543.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,278.92 : 775,956.11 = 307,635.57 : x
  2. Step 2: Convert to fraction form
    562,278.92/775,956.11 = 307,635.57/x
  3. Step 3: Cross multiply
    562,278.92x = 775,956.11 × 307,635.57
  4. Step 4: Simplify right side
    562,278.92x = 238,711,698,656.66
  5. Step 5: Solve for x
    x = 238,711,698,656.66/562,278.92
  6. Step 6: Final answer
    x = 424,543.22

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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.