Home / 261,005.08-391,565.94-83,522.74

Finding the Fourth Proportional to 261,005.08, 391,565.94 and 83,522.74

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Solution

The fourth proportional to 261,005.08, 391,565.94 and 83,522.74 is: 125,302.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,005.08 : 391,565.94 = 83,522.74 : x
  2. Step 2: Convert to fraction form
    261,005.08/391,565.94 = 83,522.74/x
  3. Step 3: Cross multiply
    261,005.08x = 391,565.94 × 83,522.74
  4. Step 4: Simplify right side
    261,005.08x = 32,704,660,199.48
  5. Step 5: Solve for x
    x = 32,704,660,199.48/261,005.08
  6. Step 6: Final answer
    x = 125,302.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.