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Finding the Fourth Proportional to 423,659.25, 584,647.40 and 230,065.10

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Solution

The fourth proportional to 423,659.25, 584,647.40 and 230,065.10 is: 317,488.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,659.25 : 584,647.40 = 230,065.10 : x
  2. Step 2: Convert to fraction form
    423,659.25/584,647.40 = 230,065.10/x
  3. Step 3: Cross multiply
    423,659.25x = 584,647.40 × 230,065.10
  4. Step 4: Simplify right side
    423,659.25x = 134,506,959,550.61
  5. Step 5: Solve for x
    x = 134,506,959,550.61/423,659.25
  6. Step 6: Final answer
    x = 317,488.55

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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.