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Finding the Fourth Proportional to 476,987.30, 658,210.65 and 262,122.74

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Solution

The fourth proportional to 476,987.30, 658,210.65 and 262,122.74 is: 361,711.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,987.30 : 658,210.65 = 262,122.74 : x
  2. Step 2: Convert to fraction form
    476,987.30/658,210.65 = 262,122.74/x
  3. Step 3: Cross multiply
    476,987.30x = 658,210.65 × 262,122.74
  4. Step 4: Simplify right side
    476,987.30x = 172,531,979,075.18
  5. Step 5: Solve for x
    x = 172,531,979,075.18/476,987.30
  6. Step 6: Final answer
    x = 361,711.89

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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.