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Finding the Fourth Proportional to 496,289.80, 744,434.70 and 141,315.40

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Solution

The fourth proportional to 496,289.80, 744,434.70 and 141,315.40 is: 211,973.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,289.80 : 744,434.70 = 141,315.40 : x
  2. Step 2: Convert to fraction form
    496,289.80/744,434.70 = 141,315.40/x
  3. Step 3: Cross multiply
    496,289.80x = 744,434.70 × 141,315.40
  4. Step 4: Simplify right side
    496,289.80x = 105,200,087,404.38
  5. Step 5: Solve for x
    x = 105,200,087,404.38/496,289.80
  6. Step 6: Final answer
    x = 211,973.10

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Similar ratio
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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.