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Finding the Fourth Proportional to 469,878.49, 648,432.03 and 265,925.69

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Solution

The fourth proportional to 469,878.49, 648,432.03 and 265,925.69 is: 366,977.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,878.49 : 648,432.03 = 265,925.69 : x
  2. Step 2: Convert to fraction form
    469,878.49/648,432.03 = 265,925.69/x
  3. Step 3: Cross multiply
    469,878.49x = 648,432.03 × 265,925.69
  4. Step 4: Simplify right side
    469,878.49x = 172,434,734,995.85
  5. Step 5: Solve for x
    x = 172,434,734,995.85/469,878.49
  6. Step 6: Final answer
    x = 366,977.29

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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.