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Finding the Fourth Proportional to 288,981.60, 433,472.40 and 101,968.80

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Solution

The fourth proportional to 288,981.60, 433,472.40 and 101,968.80 is: 152,953.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,981.60 : 433,472.40 = 101,968.80 : x
  2. Step 2: Convert to fraction form
    288,981.60/433,472.40 = 101,968.80/x
  3. Step 3: Cross multiply
    288,981.60x = 433,472.40 × 101,968.80
  4. Step 4: Simplify right side
    288,981.60x = 44,200,660,461.12
  5. Step 5: Solve for x
    x = 44,200,660,461.12/288,981.60
  6. Step 6: Final answer
    x = 152,953.20

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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.