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Finding the Fourth Proportional to 658,041.25, 908,098.14 and 356,235.25

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Solution

The fourth proportional to 658,041.25, 908,098.14 and 356,235.25 is: 491,605.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,041.25 : 908,098.14 = 356,235.25 : x
  2. Step 2: Convert to fraction form
    658,041.25/908,098.14 = 356,235.25/x
  3. Step 3: Cross multiply
    658,041.25x = 908,098.14 × 356,235.25
  4. Step 4: Simplify right side
    658,041.25x = 323,496,567,927.44
  5. Step 5: Solve for x
    x = 323,496,567,927.44/658,041.25
  6. Step 6: Final answer
    x = 491,605.30

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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.