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Finding the Fourth Proportional to 319,585.43, 441,017.30 and 176,345.57

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Solution

The fourth proportional to 319,585.43, 441,017.30 and 176,345.57 is: 243,351.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,585.43 : 441,017.30 = 176,345.57 : x
  2. Step 2: Convert to fraction form
    319,585.43/441,017.30 = 176,345.57/x
  3. Step 3: Cross multiply
    319,585.43x = 441,017.30 × 176,345.57
  4. Step 4: Simplify right side
    319,585.43x = 77,771,444,061.55
  5. Step 5: Solve for x
    x = 77,771,444,061.55/319,585.43
  6. Step 6: Final answer
    x = 243,351.04

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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.