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Finding the Fourth Proportional to 292,519.20, 438,778.80 and 181,927.20

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Solution

The fourth proportional to 292,519.20, 438,778.80 and 181,927.20 is: 272,890.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,519.20 : 438,778.80 = 181,927.20 : x
  2. Step 2: Convert to fraction form
    292,519.20/438,778.80 = 181,927.20/x
  3. Step 3: Cross multiply
    292,519.20x = 438,778.80 × 181,927.20
  4. Step 4: Simplify right side
    292,519.20x = 79,825,798,503.36
  5. Step 5: Solve for x
    x = 79,825,798,503.36/292,519.20
  6. Step 6: Final answer
    x = 272,890.80

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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.