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Finding the Fourth Proportional to 423,934.38, 585,055.62 and 242,642.45

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Solution

The fourth proportional to 423,934.38, 585,055.62 and 242,642.45 is: 334,861.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,934.38 : 585,055.62 = 242,642.45 : x
  2. Step 2: Convert to fraction form
    423,934.38/585,055.62 = 242,642.45/x
  3. Step 3: Cross multiply
    423,934.38x = 585,055.62 × 242,642.45
  4. Step 4: Simplify right side
    423,934.38x = 141,959,329,023.07
  5. Step 5: Solve for x
    x = 141,959,329,023.07/423,934.38
  6. Step 6: Final answer
    x = 334,861.56

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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.