Home / 351,459.74-527,191.30-85,220.23

Finding the Fourth Proportional to 351,459.74, 527,191.30 and 85,220.23

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Solution

The fourth proportional to 351,459.74, 527,191.30 and 85,220.23 is: 127,830.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,459.74 : 527,191.30 = 85,220.23 : x
  2. Step 2: Convert to fraction form
    351,459.74/527,191.30 = 85,220.23/x
  3. Step 3: Cross multiply
    351,459.74x = 527,191.30 × 85,220.23
  4. Step 4: Simplify right side
    351,459.74x = 44,927,363,840.00
  5. Step 5: Solve for x
    x = 44,927,363,840.00/351,459.74
  6. Step 6: Final answer
    x = 127,830.75

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Similar ratio
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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.