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Finding the Fourth Proportional to 592,317, 817,397.46 and 320,384.88

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Solution

The fourth proportional to 592,317, 817,397.46 and 320,384.88 is: 442,131.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,317 : 817,397.46 = 320,384.88 : x
  2. Step 2: Convert to fraction form
    592,317/817,397.46 = 320,384.88/x
  3. Step 3: Cross multiply
    592,317x = 817,397.46 × 320,384.88
  4. Step 4: Simplify right side
    592,317x = 261,881,787,134.41
  5. Step 5: Solve for x
    x = 261,881,787,134.41/592,317
  6. Step 6: Final answer
    x = 442,131.13

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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.