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Finding the Fourth Proportional to 404,806.40, 607,209.60 and 124,323.20

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Solution

The fourth proportional to 404,806.40, 607,209.60 and 124,323.20 is: 186,484.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,806.40 : 607,209.60 = 124,323.20 : x
  2. Step 2: Convert to fraction form
    404,806.40/607,209.60 = 124,323.20/x
  3. Step 3: Cross multiply
    404,806.40x = 607,209.60 × 124,323.20
  4. Step 4: Simplify right side
    404,806.40x = 75,490,240,542.72
  5. Step 5: Solve for x
    x = 75,490,240,542.72/404,806.40
  6. Step 6: Final answer
    x = 186,484.80

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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.