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Finding the Fourth Proportional to 349,426.60, 524,139.90 and 326,098.60

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Solution

The fourth proportional to 349,426.60, 524,139.90 and 326,098.60 is: 489,147.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,426.60 : 524,139.90 = 326,098.60 : x
  2. Step 2: Convert to fraction form
    349,426.60/524,139.90 = 326,098.60/x
  3. Step 3: Cross multiply
    349,426.60x = 524,139.90 × 326,098.60
  4. Step 4: Simplify right side
    349,426.60x = 170,921,287,594.14
  5. Step 5: Solve for x
    x = 170,921,287,594.14/349,426.60
  6. Step 6: Final answer
    x = 489,147.90

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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.