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Finding the Fourth Proportional to 585,084.75, 807,416.96 and 316,812.75

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Solution

The fourth proportional to 585,084.75, 807,416.96 and 316,812.75 is: 437,201.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,084.75 : 807,416.96 = 316,812.75 : x
  2. Step 2: Convert to fraction form
    585,084.75/807,416.96 = 316,812.75/x
  3. Step 3: Cross multiply
    585,084.75x = 807,416.96 × 316,812.75
  4. Step 4: Simplify right side
    585,084.75x = 255,799,985,910.18
  5. Step 5: Solve for x
    x = 255,799,985,910.18/585,084.75
  6. Step 6: Final answer
    x = 437,201.60

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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.