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Finding the Fourth Proportional to 515,099.70, 770,899.95 and 452,114.10

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Solution

The fourth proportional to 515,099.70, 770,899.95 and 452,114.10 is: 676,635.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,099.70 : 770,899.95 = 452,114.10 : x
  2. Step 2: Convert to fraction form
    515,099.70/770,899.95 = 452,114.10/x
  3. Step 3: Cross multiply
    515,099.70x = 770,899.95 × 452,114.10
  4. Step 4: Simplify right side
    515,099.70x = 348,534,737,084.30
  5. Step 5: Solve for x
    x = 348,534,737,084.30/515,099.70
  6. Step 6: Final answer
    x = 676,635.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.