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Finding the Fourth Proportional to 328,054.20, 492,081.30 and 117,713.40

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Solution

The fourth proportional to 328,054.20, 492,081.30 and 117,713.40 is: 176,570.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,054.20 : 492,081.30 = 117,713.40 : x
  2. Step 2: Convert to fraction form
    328,054.20/492,081.30 = 117,713.40/x
  3. Step 3: Cross multiply
    328,054.20x = 492,081.30 × 117,713.40
  4. Step 4: Simplify right side
    328,054.20x = 57,924,562,899.42
  5. Step 5: Solve for x
    x = 57,924,562,899.42/328,054.20
  6. Step 6: Final answer
    x = 176,570.10

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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.