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Finding the Fourth Proportional to 322,401.60, 483,602.40 and 247,897.80

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Solution

The fourth proportional to 322,401.60, 483,602.40 and 247,897.80 is: 371,846.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,401.60 : 483,602.40 = 247,897.80 : x
  2. Step 2: Convert to fraction form
    322,401.60/483,602.40 = 247,897.80/x
  3. Step 3: Cross multiply
    322,401.60x = 483,602.40 × 247,897.80
  4. Step 4: Simplify right side
    322,401.60x = 119,883,971,034.72
  5. Step 5: Solve for x
    x = 119,883,971,034.72/322,401.60
  6. Step 6: Final answer
    x = 371,846.70

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1.5x scale

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.