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Finding the Fourth Proportional to 555,002.10, 766,050.92 and 313,426.08

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Solution

The fourth proportional to 555,002.10, 766,050.92 and 313,426.08 is: 432,611.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,002.10 : 766,050.92 = 313,426.08 : x
  2. Step 2: Convert to fraction form
    555,002.10/766,050.92 = 313,426.08/x
  3. Step 3: Cross multiply
    555,002.10x = 766,050.92 × 313,426.08
  4. Step 4: Simplify right side
    555,002.10x = 240,100,336,544.21
  5. Step 5: Solve for x
    x = 240,100,336,544.21/555,002.10
  6. Step 6: Final answer
    x = 432,611.58

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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.