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Finding the Fourth Proportional to 480,715.72, 663,360.62 and 262,881.16

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Solution

The fourth proportional to 480,715.72, 663,360.62 and 262,881.16 is: 362,761.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,715.72 : 663,360.62 = 262,881.16 : x
  2. Step 2: Convert to fraction form
    480,715.72/663,360.62 = 262,881.16/x
  3. Step 3: Cross multiply
    480,715.72x = 663,360.62 × 262,881.16
  4. Step 4: Simplify right side
    480,715.72x = 174,385,009,283.92
  5. Step 5: Solve for x
    x = 174,385,009,283.92/480,715.72
  6. Step 6: Final answer
    x = 362,761.20

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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.