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Finding the Fourth Proportional to 529,712.20, 793,401.90 and 470,614.60

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Solution

The fourth proportional to 529,712.20, 793,401.90 and 470,614.60 is: 704,885.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,712.20 : 793,401.90 = 470,614.60 : x
  2. Step 2: Convert to fraction form
    529,712.20/793,401.90 = 470,614.60/x
  3. Step 3: Cross multiply
    529,712.20x = 793,401.90 × 470,614.60
  4. Step 4: Simplify right side
    529,712.20x = 373,386,517,807.74
  5. Step 5: Solve for x
    x = 373,386,517,807.74/529,712.20
  6. Step 6: Final answer
    x = 704,885.63

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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.