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Finding the Fourth Proportional to 328,055.20, 492,082.80 and 117,714.40

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Solution

The fourth proportional to 328,055.20, 492,082.80 and 117,714.40 is: 176,571.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,055.20 : 492,082.80 = 117,714.40 : x
  2. Step 2: Convert to fraction form
    328,055.20/492,082.80 = 117,714.40/x
  3. Step 3: Cross multiply
    328,055.20x = 492,082.80 × 117,714.40
  4. Step 4: Simplify right side
    328,055.20x = 57,925,231,552.32
  5. Step 5: Solve for x
    x = 57,925,231,552.32/328,055.20
  6. Step 6: Final answer
    x = 176,571.60

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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.