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Finding the Fourth Proportional to 346,854.69, 520,029.72 and 234,255.78

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Solution

The fourth proportional to 346,854.69, 520,029.72 and 234,255.78 is: 351,213.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,854.69 : 520,029.72 = 234,255.78 : x
  2. Step 2: Convert to fraction form
    346,854.69/520,029.72 = 234,255.78/x
  3. Step 3: Cross multiply
    346,854.69x = 520,029.72 × 234,255.78
  4. Step 4: Simplify right side
    346,854.69x = 121,819,967,681.78
  5. Step 5: Solve for x
    x = 121,819,967,681.78/346,854.69
  6. Step 6: Final answer
    x = 351,213.26

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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.