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Finding the Fourth Proportional to 468,076.80, 645,944.58 and 253,216.82

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Solution

The fourth proportional to 468,076.80, 645,944.58 and 253,216.82 is: 349,438.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,076.80 : 645,944.58 = 253,216.82 : x
  2. Step 2: Convert to fraction form
    468,076.80/645,944.58 = 253,216.82/x
  3. Step 3: Cross multiply
    468,076.80x = 645,944.58 × 253,216.82
  4. Step 4: Simplify right side
    468,076.80x = 163,564,032,443.84
  5. Step 5: Solve for x
    x = 163,564,032,443.84/468,076.80
  6. Step 6: Final answer
    x = 349,438.45

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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.