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Finding the Fourth Proportional to 480,735.61, 663,403.77 and 265,871.16

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Solution

The fourth proportional to 480,735.61, 663,403.77 and 265,871.16 is: 366,895.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,735.61 : 663,403.77 = 265,871.16 : x
  2. Step 2: Convert to fraction form
    480,735.61/663,403.77 = 265,871.16/x
  3. Step 3: Cross multiply
    480,735.61x = 663,403.77 × 265,871.16
  4. Step 4: Simplify right side
    480,735.61x = 176,379,929,878.27
  5. Step 5: Solve for x
    x = 176,379,929,878.27/480,735.61
  6. Step 6: Final answer
    x = 366,895.91

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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.