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Finding the Fourth Proportional to 480,278.07, 662,765.83 and 276,360.53

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Solution

The fourth proportional to 480,278.07, 662,765.83 and 276,360.53 is: 381,367.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,278.07 : 662,765.83 = 276,360.53 : x
  2. Step 2: Convert to fraction form
    480,278.07/662,765.83 = 276,360.53/x
  3. Step 3: Cross multiply
    480,278.07x = 662,765.83 × 276,360.53
  4. Step 4: Simplify right side
    480,278.07x = 183,162,316,044.69
  5. Step 5: Solve for x
    x = 183,162,316,044.69/480,278.07
  6. Step 6: Final answer
    x = 381,367.23

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1.5x scale

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.