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Finding the Fourth Proportional to 584,429.80, 876,039.90 and 317,626.60

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Solution

The fourth proportional to 584,429.80, 876,039.90 and 317,626.60 is: 476,111.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,429.80 : 876,039.90 = 317,626.60 : x
  2. Step 2: Convert to fraction form
    584,429.80/876,039.90 = 317,626.60/x
  3. Step 3: Cross multiply
    584,429.80x = 876,039.90 × 317,626.60
  4. Step 4: Simplify right side
    584,429.80x = 278,253,574,901.34
  5. Step 5: Solve for x
    x = 278,253,574,901.34/584,429.80
  6. Step 6: Final answer
    x = 476,111.20

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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.