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Finding the Fourth Proportional to 585,436.52, 807,903.18 and 317,164.52

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Solution

The fourth proportional to 585,436.52, 807,903.18 and 317,164.52 is: 437,687.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,436.52 : 807,903.18 = 317,164.52 : x
  2. Step 2: Convert to fraction form
    585,436.52/807,903.18 = 317,164.52/x
  3. Step 3: Cross multiply
    585,436.52x = 807,903.18 × 317,164.52
  4. Step 4: Simplify right side
    585,436.52x = 256,238,224,291.17
  5. Step 5: Solve for x
    x = 256,238,224,291.17/585,436.52
  6. Step 6: Final answer
    x = 437,687.46

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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.