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Finding the Fourth Proportional to 592,462.72, 816,748 and 422,401.60

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Solution

The fourth proportional to 592,462.72, 816,748 and 422,401.60 is: 582,307.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,462.72 : 816,748 = 422,401.60 : x
  2. Step 2: Convert to fraction form
    592,462.72/816,748 = 422,401.60/x
  3. Step 3: Cross multiply
    592,462.72x = 816,748 × 422,401.60
  4. Step 4: Simplify right side
    592,462.72x = 344,995,661,996.80
  5. Step 5: Solve for x
    x = 344,995,661,996.80/592,462.72
  6. Step 6: Final answer
    x = 582,307.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.