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Finding the Fourth Proportional to 571,147.20, 854,877.60 and 526,910.40

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Solution

The fourth proportional to 571,147.20, 854,877.60 and 526,910.40 is: 788,665.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,147.20 : 854,877.60 = 526,910.40 : x
  2. Step 2: Convert to fraction form
    571,147.20/854,877.60 = 526,910.40/x
  3. Step 3: Cross multiply
    571,147.20x = 854,877.60 × 526,910.40
  4. Step 4: Simplify right side
    571,147.20x = 450,443,898,167.04
  5. Step 5: Solve for x
    x = 450,443,898,167.04/571,147.20
  6. Step 6: Final answer
    x = 788,665.16

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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.