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Finding the Fourth Proportional to 585,281.88, 807,683.94 and 317,009.88

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Solution

The fourth proportional to 585,281.88, 807,683.94 and 317,009.88 is: 437,470.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,281.88 : 807,683.94 = 317,009.88 : x
  2. Step 2: Convert to fraction form
    585,281.88/807,683.94 = 317,009.88/x
  3. Step 3: Cross multiply
    585,281.88x = 807,683.94 × 317,009.88
  4. Step 4: Simplify right side
    585,281.88x = 256,043,788,897.33
  5. Step 5: Solve for x
    x = 256,043,788,897.33/585,281.88
  6. Step 6: Final answer
    x = 437,470.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.