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Finding the Fourth Proportional to 577,369.80, 866,054.70 and 156,645.68

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Solution

The fourth proportional to 577,369.80, 866,054.70 and 156,645.68 is: 234,968.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,369.80 : 866,054.70 = 156,645.68 : x
  2. Step 2: Convert to fraction form
    577,369.80/866,054.70 = 156,645.68/x
  3. Step 3: Cross multiply
    577,369.80x = 866,054.70 × 156,645.68
  4. Step 4: Simplify right side
    577,369.80x = 135,663,723,068.42
  5. Step 5: Solve for x
    x = 135,663,723,068.42/577,369.80
  6. Step 6: Final answer
    x = 234,968.51

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Similar ratio
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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.