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Finding the Fourth Proportional to 756,774, 1,044,348.48 and 417,264.48

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Solution

The fourth proportional to 756,774, 1,044,348.48 and 417,264.48 is: 575,825.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,774 : 1,044,348.48 = 417,264.48 : x
  2. Step 2: Convert to fraction form
    756,774/1,044,348.48 = 417,264.48/x
  3. Step 3: Cross multiply
    756,774x = 1,044,348.48 × 417,264.48
  4. Step 4: Simplify right side
    756,774x = 435,769,525,445.99
  5. Step 5: Solve for x
    x = 435,769,525,445.99/756,774
  6. Step 6: Final answer
    x = 575,825.18

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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.