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Finding the Fourth Proportional to 411,727.80, 617,130.90 and 175,030.20

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Solution

The fourth proportional to 411,727.80, 617,130.90 and 175,030.20 is: 262,349.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,727.80 : 617,130.90 = 175,030.20 : x
  2. Step 2: Convert to fraction form
    411,727.80/617,130.90 = 175,030.20/x
  3. Step 3: Cross multiply
    411,727.80x = 617,130.90 × 175,030.20
  4. Step 4: Simplify right side
    411,727.80x = 108,016,544,853.18
  5. Step 5: Solve for x
    x = 108,016,544,853.18/411,727.80
  6. Step 6: Final answer
    x = 262,349.41

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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.