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Finding the Fourth Proportional to 402,212.93, 555,150.52 and 230,230.59

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Solution

The fourth proportional to 402,212.93, 555,150.52 and 230,230.59 is: 317,773.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,212.93 : 555,150.52 = 230,230.59 : x
  2. Step 2: Convert to fraction form
    402,212.93/555,150.52 = 230,230.59/x
  3. Step 3: Cross multiply
    402,212.93x = 555,150.52 × 230,230.59
  4. Step 4: Simplify right side
    402,212.93x = 127,812,633,264.65
  5. Step 5: Solve for x
    x = 127,812,633,264.65/402,212.93
  6. Step 6: Final answer
    x = 317,773.55

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1.5x scale

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.