Home / 467,905.18-645,711.08-253,045.25

Finding the Fourth Proportional to 467,905.18, 645,711.08 and 253,045.25

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Solution

The fourth proportional to 467,905.18, 645,711.08 and 253,045.25 is: 349,203.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,905.18 : 645,711.08 = 253,045.25 : x
  2. Step 2: Convert to fraction form
    467,905.18/645,711.08 = 253,045.25/x
  3. Step 3: Cross multiply
    467,905.18x = 645,711.08 × 253,045.25
  4. Step 4: Simplify right side
    467,905.18x = 163,394,119,070.43
  5. Step 5: Solve for x
    x = 163,394,119,070.43/467,905.18
  6. Step 6: Final answer
    x = 349,203.49

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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.