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Finding the Fourth Proportional to 463,988.52, 640,349.10 and 260,074.08

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Solution

The fourth proportional to 463,988.52, 640,349.10 and 260,074.08 is: 358,927.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,988.52 : 640,349.10 = 260,074.08 : x
  2. Step 2: Convert to fraction form
    463,988.52/640,349.10 = 260,074.08/x
  3. Step 3: Cross multiply
    463,988.52x = 640,349.10 × 260,074.08
  4. Step 4: Simplify right side
    463,988.52x = 166,538,203,061.33
  5. Step 5: Solve for x
    x = 166,538,203,061.33/463,988.52
  6. Step 6: Final answer
    x = 358,927.42

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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.