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Finding the Fourth Proportional to 585,294.75, 807,706.76 and 317,022.75

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Solution

The fourth proportional to 585,294.75, 807,706.76 and 317,022.75 is: 437,491.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,294.75 : 807,706.76 = 317,022.75 : x
  2. Step 2: Convert to fraction form
    585,294.75/807,706.76 = 317,022.75/x
  3. Step 3: Cross multiply
    585,294.75x = 807,706.76 × 317,022.75
  4. Step 4: Simplify right side
    585,294.75x = 256,061,416,663.68
  5. Step 5: Solve for x
    x = 256,061,416,663.68/585,294.75
  6. Step 6: Final answer
    x = 437,491.40

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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.