Home / 351,627.68-527,439.18-85,386.38

Finding the Fourth Proportional to 351,627.68, 527,439.18 and 85,386.38

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Solution

The fourth proportional to 351,627.68, 527,439.18 and 85,386.38 is: 128,079.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,627.68 : 527,439.18 = 85,386.38 : x
  2. Step 2: Convert to fraction form
    351,627.68/527,439.18 = 85,386.38/x
  3. Step 3: Cross multiply
    351,627.68x = 527,439.18 × 85,386.38
  4. Step 4: Simplify right side
    351,627.68x = 45,036,122,250.37
  5. Step 5: Solve for x
    x = 45,036,122,250.37/351,627.68
  6. Step 6: Final answer
    x = 128,079.00

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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.