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Finding the Fourth Proportional to 526,467.60, 787,397.40 and 470,710.80

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Solution

The fourth proportional to 526,467.60, 787,397.40 and 470,710.80 is: 704,006.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,467.60 : 787,397.40 = 470,710.80 : x
  2. Step 2: Convert to fraction form
    526,467.60/787,397.40 = 470,710.80/x
  3. Step 3: Cross multiply
    526,467.60x = 787,397.40 × 470,710.80
  4. Step 4: Simplify right side
    526,467.60x = 370,636,460,071.92
  5. Step 5: Solve for x
    x = 370,636,460,071.92/526,467.60
  6. Step 6: Final answer
    x = 704,006.21

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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.