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Finding the Fourth Proportional to 630,141.40, 944,348.10 and 404,810.20

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Solution

The fourth proportional to 630,141.40, 944,348.10 and 404,810.20 is: 606,660.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,141.40 : 944,348.10 = 404,810.20 : x
  2. Step 2: Convert to fraction form
    630,141.40/944,348.10 = 404,810.20/x
  3. Step 3: Cross multiply
    630,141.40x = 944,348.10 × 404,810.20
  4. Step 4: Simplify right side
    630,141.40x = 382,281,743,230.62
  5. Step 5: Solve for x
    x = 382,281,743,230.62/630,141.40
  6. Step 6: Final answer
    x = 606,660.26

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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.