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Finding the Fourth Proportional to 550,476.15, 825,714.23 and 417,615.90

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Solution

The fourth proportional to 550,476.15, 825,714.23 and 417,615.90 is: 626,423.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,476.15 : 825,714.23 = 417,615.90 : x
  2. Step 2: Convert to fraction form
    550,476.15/825,714.23 = 417,615.90/x
  3. Step 3: Cross multiply
    550,476.15x = 825,714.23 × 417,615.90
  4. Step 4: Simplify right side
    550,476.15x = 344,831,389,216.18
  5. Step 5: Solve for x
    x = 344,831,389,216.18/550,476.15
  6. Step 6: Final answer
    x = 626,423.85

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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.