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Finding the Fourth Proportional to 585,116.70, 807,456.42 and 316,844.70

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Solution

The fourth proportional to 585,116.70, 807,456.42 and 316,844.70 is: 437,243.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,116.70 : 807,456.42 = 316,844.70 : x
  2. Step 2: Convert to fraction form
    585,116.70/807,456.42 = 316,844.70/x
  3. Step 3: Cross multiply
    585,116.70x = 807,456.42 × 316,844.70
  4. Step 4: Simplify right side
    585,116.70x = 255,838,287,157.97
  5. Step 5: Solve for x
    x = 255,838,287,157.97/585,116.70
  6. Step 6: Final answer
    x = 437,243.18

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1.5x scale

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.