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Finding the Fourth Proportional to 354,697.20, 532,045.80 and 310,410.45

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Solution

The fourth proportional to 354,697.20, 532,045.80 and 310,410.45 is: 465,615.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,697.20 : 532,045.80 = 310,410.45 : x
  2. Step 2: Convert to fraction form
    354,697.20/532,045.80 = 310,410.45/x
  3. Step 3: Cross multiply
    354,697.20x = 532,045.80 × 310,410.45
  4. Step 4: Simplify right side
    354,697.20x = 165,152,576,198.61
  5. Step 5: Solve for x
    x = 165,152,576,198.61/354,697.20
  6. Step 6: Final answer
    x = 465,615.68

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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.