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Finding the Fourth Proportional to 255,229.40, 382,989.90 and 176,400.20

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Solution

The fourth proportional to 255,229.40, 382,989.90 and 176,400.20 is: 264,701.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,229.40 : 382,989.90 = 176,400.20 : x
  2. Step 2: Convert to fraction form
    255,229.40/382,989.90 = 176,400.20/x
  3. Step 3: Cross multiply
    255,229.40x = 382,989.90 × 176,400.20
  4. Step 4: Simplify right side
    255,229.40x = 67,559,494,957.98
  5. Step 5: Solve for x
    x = 67,559,494,957.98/255,229.40
  6. Step 6: Final answer
    x = 264,701.07

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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.