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Finding the Fourth Proportional to 592,564.85, 817,737.86 and 320,637.38

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Solution

The fourth proportional to 592,564.85, 817,737.86 and 320,637.38 is: 442,478.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,564.85 : 817,737.86 = 320,637.38 : x
  2. Step 2: Convert to fraction form
    592,564.85/817,737.86 = 320,637.38/x
  3. Step 3: Cross multiply
    592,564.85x = 817,737.86 × 320,637.38
  4. Step 4: Simplify right side
    592,564.85x = 262,197,319,265.33
  5. Step 5: Solve for x
    x = 262,197,319,265.33/592,564.85
  6. Step 6: Final answer
    x = 442,478.69

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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.