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Finding the Fourth Proportional to 243,315.51, 333,336.68 and 234,218.52

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Solution

The fourth proportional to 243,315.51, 333,336.68 and 234,218.52 is: 320,874.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,315.51 : 333,336.68 = 234,218.52 : x
  2. Step 2: Convert to fraction form
    243,315.51/333,336.68 = 234,218.52/x
  3. Step 3: Cross multiply
    243,315.51x = 333,336.68 × 234,218.52
  4. Step 4: Simplify right side
    243,315.51x = 78,073,623,851.31
  5. Step 5: Solve for x
    x = 78,073,623,851.31/243,315.51
  6. Step 6: Final answer
    x = 320,874.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.