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Finding the Fourth Proportional to 537,714.40, 742,710.72 and 394,247.20

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Solution

The fourth proportional to 537,714.40, 742,710.72 and 394,247.20 is: 544,548.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,714.40 : 742,710.72 = 394,247.20 : x
  2. Step 2: Convert to fraction form
    537,714.40/742,710.72 = 394,247.20/x
  3. Step 3: Cross multiply
    537,714.40x = 742,710.72 × 394,247.20
  4. Step 4: Simplify right side
    537,714.40x = 292,811,621,769.98
  5. Step 5: Solve for x
    x = 292,811,621,769.98/537,714.40
  6. Step 6: Final answer
    x = 544,548.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.