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Finding the Fourth Proportional to 297,641.28, 446,465.52 and 87,283.48

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Solution

The fourth proportional to 297,641.28, 446,465.52 and 87,283.48 is: 130,926.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,641.28 : 446,465.52 = 87,283.48 : x
  2. Step 2: Convert to fraction form
    297,641.28/446,465.52 = 87,283.48/x
  3. Step 3: Cross multiply
    297,641.28x = 446,465.52 × 87,283.48
  4. Step 4: Simplify right side
    297,641.28x = 38,969,064,285.61
  5. Step 5: Solve for x
    x = 38,969,064,285.61/297,641.28
  6. Step 6: Final answer
    x = 130,926.28

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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.