Home / 864,257.89-1,192,565.86-482,300.77

Finding the Fourth Proportional to 864,257.89, 1,192,565.86 and 482,300.77

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Solution

The fourth proportional to 864,257.89, 1,192,565.86 and 482,300.77 is: 665,513.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,257.89 : 1,192,565.86 = 482,300.77 : x
  2. Step 2: Convert to fraction form
    864,257.89/1,192,565.86 = 482,300.77/x
  3. Step 3: Cross multiply
    864,257.89x = 1,192,565.86 × 482,300.77
  4. Step 4: Simplify right side
    864,257.89x = 575,175,432,553.71
  5. Step 5: Solve for x
    x = 575,175,432,553.71/864,257.89
  6. Step 6: Final answer
    x = 665,513.66

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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.