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Finding the Fourth Proportional to 452,870.91, 678,703.55 and 239,593.30

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Solution

The fourth proportional to 452,870.91, 678,703.55 and 239,593.30 is: 359,071.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,870.91 : 678,703.55 = 239,593.30 : x
  2. Step 2: Convert to fraction form
    452,870.91/678,703.55 = 239,593.30/x
  3. Step 3: Cross multiply
    452,870.91x = 678,703.55 × 239,593.30
  4. Step 4: Simplify right side
    452,870.91x = 162,612,823,266.22
  5. Step 5: Solve for x
    x = 162,612,823,266.22/452,870.91
  6. Step 6: Final answer
    x = 359,071.03

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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.