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Finding the Fourth Proportional to 434,832.60, 652,248.90 and 403,339.80

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Solution

The fourth proportional to 434,832.60, 652,248.90 and 403,339.80 is: 605,009.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,832.60 : 652,248.90 = 403,339.80 : x
  2. Step 2: Convert to fraction form
    434,832.60/652,248.90 = 403,339.80/x
  3. Step 3: Cross multiply
    434,832.60x = 652,248.90 × 403,339.80
  4. Step 4: Simplify right side
    434,832.60x = 263,077,940,876.22
  5. Step 5: Solve for x
    x = 263,077,940,876.22/434,832.60
  6. Step 6: Final answer
    x = 605,009.70

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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.