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Finding the Fourth Proportional to 266,840.58, 399,864.78 and 148,348.92

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Solution

The fourth proportional to 266,840.58, 399,864.78 and 148,348.92 is: 222,303.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,840.58 : 399,864.78 = 148,348.92 : x
  2. Step 2: Convert to fraction form
    266,840.58/399,864.78 = 148,348.92/x
  3. Step 3: Cross multiply
    266,840.58x = 399,864.78 × 148,348.92
  4. Step 4: Simplify right side
    266,840.58x = 59,319,508,259.04
  5. Step 5: Solve for x
    x = 59,319,508,259.04/266,840.58
  6. Step 6: Final answer
    x = 222,303.18

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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.