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Finding the Fourth Proportional to 314,348.88, 433,808.52 and 178,391.76

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Solution

The fourth proportional to 314,348.88, 433,808.52 and 178,391.76 is: 246,184.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,348.88 : 433,808.52 = 178,391.76 : x
  2. Step 2: Convert to fraction form
    314,348.88/433,808.52 = 178,391.76/x
  3. Step 3: Cross multiply
    314,348.88x = 433,808.52 × 178,391.76
  4. Step 4: Simplify right side
    314,348.88x = 77,387,865,385.80
  5. Step 5: Solve for x
    x = 77,387,865,385.80/314,348.88
  6. Step 6: Final answer
    x = 246,184.64

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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.