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Finding the Fourth Proportional to 575,658.20, 863,487.30 and 326,826.20

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Solution

The fourth proportional to 575,658.20, 863,487.30 and 326,826.20 is: 490,239.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,658.20 : 863,487.30 = 326,826.20 : x
  2. Step 2: Convert to fraction form
    575,658.20/863,487.30 = 326,826.20/x
  3. Step 3: Cross multiply
    575,658.20x = 863,487.30 × 326,826.20
  4. Step 4: Simplify right side
    575,658.20x = 282,210,273,007.26
  5. Step 5: Solve for x
    x = 282,210,273,007.26/575,658.20
  6. Step 6: Final answer
    x = 490,239.30

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Similar ratio
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1.5x scale

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.