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Finding the Fourth Proportional to 570,079.20, 854,554.80 and 270,032.40

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Solution

The fourth proportional to 570,079.20, 854,554.80 and 270,032.40 is: 404,781.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,079.20 : 854,554.80 = 270,032.40 : x
  2. Step 2: Convert to fraction form
    570,079.20/854,554.80 = 270,032.40/x
  3. Step 3: Cross multiply
    570,079.20x = 854,554.80 × 270,032.40
  4. Step 4: Simplify right side
    570,079.20x = 230,757,483,575.52
  5. Step 5: Solve for x
    x = 230,757,483,575.52/570,079.20
  6. Step 6: Final answer
    x = 404,781.45

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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.