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Finding the Fourth Proportional to 566,670.87, 782,023.01 and 312,031.17

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Solution

The fourth proportional to 566,670.87, 782,023.01 and 312,031.17 is: 430,612.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,670.87 : 782,023.01 = 312,031.17 : x
  2. Step 2: Convert to fraction form
    566,670.87/782,023.01 = 312,031.17/x
  3. Step 3: Cross multiply
    566,670.87x = 782,023.01 × 312,031.17
  4. Step 4: Simplify right side
    566,670.87x = 244,015,553,217.07
  5. Step 5: Solve for x
    x = 244,015,553,217.07/566,670.87
  6. Step 6: Final answer
    x = 430,612.49

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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.