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Finding the Fourth Proportional to 444,862.80, 668,849.40 and 435,531.60

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Solution

The fourth proportional to 444,862.80, 668,849.40 and 435,531.60 is: 654,819.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,862.80 : 668,849.40 = 435,531.60 : x
  2. Step 2: Convert to fraction form
    444,862.80/668,849.40 = 435,531.60/x
  3. Step 3: Cross multiply
    444,862.80x = 668,849.40 × 435,531.60
  4. Step 4: Simplify right side
    444,862.80x = 291,305,049,341.04
  5. Step 5: Solve for x
    x = 291,305,049,341.04/444,862.80
  6. Step 6: Final answer
    x = 654,819.98

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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.