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Finding the Fourth Proportional to 404,938.04, 607,391.94 and 124,448

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Solution

The fourth proportional to 404,938.04, 607,391.94 and 124,448 is: 186,667.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,938.04 : 607,391.94 = 124,448 : x
  2. Step 2: Convert to fraction form
    404,938.04/607,391.94 = 124,448/x
  3. Step 3: Cross multiply
    404,938.04x = 607,391.94 × 124,448
  4. Step 4: Simplify right side
    404,938.04x = 75,588,712,149.12
  5. Step 5: Solve for x
    x = 75,588,712,149.12/404,938.04
  6. Step 6: Final answer
    x = 186,667.35

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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.