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Finding the Fourth Proportional to 903,265, 1,246,700.10 and 540,769.78

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Solution

The fourth proportional to 903,265, 1,246,700.10 and 540,769.78 is: 746,378.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,265 : 1,246,700.10 = 540,769.78 : x
  2. Step 2: Convert to fraction form
    903,265/1,246,700.10 = 540,769.78/x
  3. Step 3: Cross multiply
    903,265x = 1,246,700.10 × 540,769.78
  4. Step 4: Simplify right side
    903,265x = 674,177,738,802.98
  5. Step 5: Solve for x
    x = 674,177,738,802.98/903,265
  6. Step 6: Final answer
    x = 746,378.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.