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Finding the Fourth Proportional to 387,045.52, 534,093.33 and 217,246.84

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Solution

The fourth proportional to 387,045.52, 534,093.33 and 217,246.84 is: 299,784.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,045.52 : 534,093.33 = 217,246.84 : x
  2. Step 2: Convert to fraction form
    387,045.52/534,093.33 = 217,246.84/x
  3. Step 3: Cross multiply
    387,045.52x = 534,093.33 × 217,246.84
  4. Step 4: Simplify right side
    387,045.52x = 116,030,088,207.58
  5. Step 5: Solve for x
    x = 116,030,088,207.58/387,045.52
  6. Step 6: Final answer
    x = 299,784.09

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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.