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Finding the Fourth Proportional to 395,347.68, 545,557.68 and 234,218.16

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Solution

The fourth proportional to 395,347.68, 545,557.68 and 234,218.16 is: 323,207.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,347.68 : 545,557.68 = 234,218.16 : x
  2. Step 2: Convert to fraction form
    395,347.68/545,557.68 = 234,218.16/x
  3. Step 3: Cross multiply
    395,347.68x = 545,557.68 × 234,218.16
  4. Step 4: Simplify right side
    395,347.68x = 127,779,515,983.47
  5. Step 5: Solve for x
    x = 127,779,515,983.47/395,347.68
  6. Step 6: Final answer
    x = 323,207.96

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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.