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Finding the Fourth Proportional to 468,272.98, 646,218.30 and 253,412.98

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Solution

The fourth proportional to 468,272.98, 646,218.30 and 253,412.98 is: 349,710.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,272.98 : 646,218.30 = 253,412.98 : x
  2. Step 2: Convert to fraction form
    468,272.98/646,218.30 = 253,412.98/x
  3. Step 3: Cross multiply
    468,272.98x = 646,218.30 × 253,412.98
  4. Step 4: Simplify right side
    468,272.98x = 163,760,105,133.53
  5. Step 5: Solve for x
    x = 163,760,105,133.53/468,272.98
  6. Step 6: Final answer
    x = 349,710.77

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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.