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Finding the Fourth Proportional to 328,044.20, 492,066.30 and 117,654.80

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Solution

The fourth proportional to 328,044.20, 492,066.30 and 117,654.80 is: 176,482.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,044.20 : 492,066.30 = 117,654.80 : x
  2. Step 2: Convert to fraction form
    328,044.20/492,066.30 = 117,654.80/x
  3. Step 3: Cross multiply
    328,044.20x = 492,066.30 × 117,654.80
  4. Step 4: Simplify right side
    328,044.20x = 57,893,962,113.24
  5. Step 5: Solve for x
    x = 57,893,962,113.24/328,044.20
  6. Step 6: Final answer
    x = 176,482.20

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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.