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Finding the Fourth Proportional to 526,472.10, 787,404.15 and 470,715.30

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Solution

The fourth proportional to 526,472.10, 787,404.15 and 470,715.30 is: 704,012.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,472.10 : 787,404.15 = 470,715.30 : x
  2. Step 2: Convert to fraction form
    526,472.10/787,404.15 = 470,715.30/x
  3. Step 3: Cross multiply
    526,472.10x = 787,404.15 × 470,715.30
  4. Step 4: Simplify right side
    526,472.10x = 370,643,180,688.50
  5. Step 5: Solve for x
    x = 370,643,180,688.50/526,472.10
  6. Step 6: Final answer
    x = 704,012.96

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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.