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Finding the Fourth Proportional to 368,759.66, 508,897.92 and 207,620.60

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Solution

The fourth proportional to 368,759.66, 508,897.92 and 207,620.60 is: 286,521.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,759.66 : 508,897.92 = 207,620.60 : x
  2. Step 2: Convert to fraction form
    368,759.66/508,897.92 = 207,620.60/x
  3. Step 3: Cross multiply
    368,759.66x = 508,897.92 × 207,620.60
  4. Step 4: Simplify right side
    368,759.66x = 105,657,691,489.15
  5. Step 5: Solve for x
    x = 105,657,691,489.15/368,759.66
  6. Step 6: Final answer
    x = 286,521.83

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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.