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Finding the Fourth Proportional to 551,153.40, 826,730.10 and 235,642.20

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Solution

The fourth proportional to 551,153.40, 826,730.10 and 235,642.20 is: 353,463.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,153.40 : 826,730.10 = 235,642.20 : x
  2. Step 2: Convert to fraction form
    551,153.40/826,730.10 = 235,642.20/x
  3. Step 3: Cross multiply
    551,153.40x = 826,730.10 × 235,642.20
  4. Step 4: Simplify right side
    551,153.40x = 194,812,499,570.22
  5. Step 5: Solve for x
    x = 194,812,499,570.22/551,153.40
  6. Step 6: Final answer
    x = 353,463.30

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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.