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Finding the Fourth Proportional to 515,037.66, 710,753.55 and 285,611.10

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Solution

The fourth proportional to 515,037.66, 710,753.55 and 285,611.10 is: 394,144.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,037.66 : 710,753.55 = 285,611.10 : x
  2. Step 2: Convert to fraction form
    515,037.66/710,753.55 = 285,611.10/x
  3. Step 3: Cross multiply
    515,037.66x = 710,753.55 × 285,611.10
  4. Step 4: Simplify right side
    515,037.66x = 202,999,103,244.41
  5. Step 5: Solve for x
    x = 202,999,103,244.41/515,037.66
  6. Step 6: Final answer
    x = 394,144.19

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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.