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Finding the Fourth Proportional to 584,439.80, 876,054.90 and 317,636.60

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Solution

The fourth proportional to 584,439.80, 876,054.90 and 317,636.60 is: 476,126.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,439.80 : 876,054.90 = 317,636.60 : x
  2. Step 2: Convert to fraction form
    584,439.80/876,054.90 = 317,636.60/x
  3. Step 3: Cross multiply
    584,439.80x = 876,054.90 × 317,636.60
  4. Step 4: Simplify right side
    584,439.80x = 278,267,099,849.34
  5. Step 5: Solve for x
    x = 278,267,099,849.34/584,439.80
  6. Step 6: Final answer
    x = 476,126.20

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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.