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Finding the Fourth Proportional to 266,528.40, 399,795.84 and 148,948.80

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Solution

The fourth proportional to 266,528.40, 399,795.84 and 148,948.80 is: 223,425.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,528.40 : 399,795.84 = 148,948.80 : x
  2. Step 2: Convert to fraction form
    266,528.40/399,795.84 = 148,948.80/x
  3. Step 3: Cross multiply
    266,528.40x = 399,795.84 × 148,948.80
  4. Step 4: Simplify right side
    266,528.40x = 59,549,110,612.99
  5. Step 5: Solve for x
    x = 59,549,110,612.99/266,528.40
  6. Step 6: Final answer
    x = 223,425.01

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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.