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Finding the Fourth Proportional to 296,488.80, 444,733.20 and 130,276.80

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Solution

The fourth proportional to 296,488.80, 444,733.20 and 130,276.80 is: 195,415.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,488.80 : 444,733.20 = 130,276.80 : x
  2. Step 2: Convert to fraction form
    296,488.80/444,733.20 = 130,276.80/x
  3. Step 3: Cross multiply
    296,488.80x = 444,733.20 × 130,276.80
  4. Step 4: Simplify right side
    296,488.80x = 57,938,418,149.76
  5. Step 5: Solve for x
    x = 57,938,418,149.76/296,488.80
  6. Step 6: Final answer
    x = 195,415.20

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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.