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Finding the Fourth Proportional to 436,708.64, 654,013.20 and 249,151.52

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Solution

The fourth proportional to 436,708.64, 654,013.20 and 249,151.52 is: 373,128.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,708.64 : 654,013.20 = 249,151.52 : x
  2. Step 2: Convert to fraction form
    436,708.64/654,013.20 = 249,151.52/x
  3. Step 3: Cross multiply
    436,708.64x = 654,013.20 × 249,151.52
  4. Step 4: Simplify right side
    436,708.64x = 162,948,382,880.06
  5. Step 5: Solve for x
    x = 162,948,382,880.06/436,708.64
  6. Step 6: Final answer
    x = 373,128.37

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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.