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Finding the Fourth Proportional to 472,876.80, 709,315.20 and 367,123.20

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Solution

The fourth proportional to 472,876.80, 709,315.20 and 367,123.20 is: 550,684.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,876.80 : 709,315.20 = 367,123.20 : x
  2. Step 2: Convert to fraction form
    472,876.80/709,315.20 = 367,123.20/x
  3. Step 3: Cross multiply
    472,876.80x = 709,315.20 × 367,123.20
  4. Step 4: Simplify right side
    472,876.80x = 260,406,066,032.64
  5. Step 5: Solve for x
    x = 260,406,066,032.64/472,876.80
  6. Step 6: Final answer
    x = 550,684.80

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Similar ratio
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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.