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Finding the Fourth Proportional to 1,402,748.26, 2,100,782.42 and 895,738.78

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Solution

The fourth proportional to 1,402,748.26, 2,100,782.42 and 895,738.78 is: 1,341,475.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402,748.26 : 2,100,782.42 = 895,738.78 : x
  2. Step 2: Convert to fraction form
    1,402,748.26/2,100,782.42 = 895,738.78/x
  3. Step 3: Cross multiply
    1,402,748.26x = 2,100,782.42 × 895,738.78
  4. Step 4: Simplify right side
    1,402,748.26x = 1,881,752,281,936.25
  5. Step 5: Solve for x
    x = 1,881,752,281,936.25/1,402,748.26
  6. Step 6: Final answer
    x = 1,341,475.40

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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.