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Finding the Fourth Proportional to 480,705.48, 663,377.94 and 265,860.36

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Solution

The fourth proportional to 480,705.48, 663,377.94 and 265,860.36 is: 366,889.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,705.48 : 663,377.94 = 265,860.36 : x
  2. Step 2: Convert to fraction form
    480,705.48/663,377.94 = 265,860.36/x
  3. Step 3: Cross multiply
    480,705.48x = 663,377.94 × 265,860.36
  4. Step 4: Simplify right side
    480,705.48x = 176,365,897,944.46
  5. Step 5: Solve for x
    x = 176,365,897,944.46/480,705.48
  6. Step 6: Final answer
    x = 366,889.72

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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.