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Finding the Fourth Proportional to 480,970.36, 663,865.14 and 277,044.76

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Solution

The fourth proportional to 480,970.36, 663,865.14 and 277,044.76 is: 382,394.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,970.36 : 663,865.14 = 277,044.76 : x
  2. Step 2: Convert to fraction form
    480,970.36/663,865.14 = 277,044.76/x
  3. Step 3: Cross multiply
    480,970.36x = 663,865.14 × 277,044.76
  4. Step 4: Simplify right side
    480,970.36x = 183,920,358,383.67
  5. Step 5: Solve for x
    x = 183,920,358,383.67/480,970.36
  6. Step 6: Final answer
    x = 382,394.37

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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.