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Finding the Fourth Proportional to 540,246.40, 812,337.90 and 453,641.20

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Solution

The fourth proportional to 540,246.40, 812,337.90 and 453,641.20 is: 682,114.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,246.40 : 812,337.90 = 453,641.20 : x
  2. Step 2: Convert to fraction form
    540,246.40/812,337.90 = 453,641.20/x
  3. Step 3: Cross multiply
    540,246.40x = 812,337.90 × 453,641.20
  4. Step 4: Simplify right side
    540,246.40x = 368,509,939,761.48
  5. Step 5: Solve for x
    x = 368,509,939,761.48/540,246.40
  6. Step 6: Final answer
    x = 682,114.57

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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.