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Finding the Fourth Proportional to 468,948.40, 647,075.60 and 277,930.96

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Solution

The fourth proportional to 468,948.40, 647,075.60 and 277,930.96 is: 383,501.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,948.40 : 647,075.60 = 277,930.96 : x
  2. Step 2: Convert to fraction form
    468,948.40/647,075.60 = 277,930.96/x
  3. Step 3: Cross multiply
    468,948.40x = 647,075.60 × 277,930.96
  4. Step 4: Simplify right side
    468,948.40x = 179,842,342,700.58
  5. Step 5: Solve for x
    x = 179,842,342,700.58/468,948.40
  6. Step 6: Final answer
    x = 383,501.35

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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.