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Finding the Fourth Proportional to 592,439.60, 817,565.51 and 320,507.71

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Solution

The fourth proportional to 592,439.60, 817,565.51 and 320,507.71 is: 442,300.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,439.60 : 817,565.51 = 320,507.71 : x
  2. Step 2: Convert to fraction form
    592,439.60/817,565.51 = 320,507.71/x
  3. Step 3: Cross multiply
    592,439.60x = 817,565.51 × 320,507.71
  4. Step 4: Simplify right side
    592,439.60x = 262,036,048,142.44
  5. Step 5: Solve for x
    x = 262,036,048,142.44/592,439.60
  6. Step 6: Final answer
    x = 442,300.02

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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.