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Finding the Fourth Proportional to 1,244,540, 1,866,810 and 358,076

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Solution

The fourth proportional to 1,244,540, 1,866,810 and 358,076 is: 537,114

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244,540 : 1,866,810 = 358,076 : x
  2. Step 2: Convert to fraction form
    1,244,540/1,866,810 = 358,076/x
  3. Step 3: Cross multiply
    1,244,540x = 1,866,810 × 358,076
  4. Step 4: Simplify right side
    1,244,540x = 668,459,857,560
  5. Step 5: Solve for x
    x = 668,459,857,560/1,244,540
  6. Step 6: Final answer
    x = 537,114

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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.