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Finding the Fourth Proportional to 322,543.03, 483,823.05 and 85,886.14

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Solution

The fourth proportional to 322,543.03, 483,823.05 and 85,886.14 is: 128,831.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,543.03 : 483,823.05 = 85,886.14 : x
  2. Step 2: Convert to fraction form
    322,543.03/483,823.05 = 85,886.14/x
  3. Step 3: Cross multiply
    322,543.03x = 483,823.05 × 85,886.14
  4. Step 4: Simplify right side
    322,543.03x = 41,553,694,207.53
  5. Step 5: Solve for x
    x = 41,553,694,207.53/322,543.03
  6. Step 6: Final answer
    x = 128,831.47

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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.