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Finding the Fourth Proportional to 586,419.20, 879,628.80 and 444,701.60

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Solution

The fourth proportional to 586,419.20, 879,628.80 and 444,701.60 is: 667,052.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,419.20 : 879,628.80 = 444,701.60 : x
  2. Step 2: Convert to fraction form
    586,419.20/879,628.80 = 444,701.60/x
  3. Step 3: Cross multiply
    586,419.20x = 879,628.80 × 444,701.60
  4. Step 4: Simplify right side
    586,419.20x = 391,172,334,766.08
  5. Step 5: Solve for x
    x = 391,172,334,766.08/586,419.20
  6. Step 6: Final answer
    x = 667,052.40

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Similar ratio
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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.