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Finding the Fourth Proportional to 654,819.04, 903,641.12 and 368,339.12

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Solution

The fourth proportional to 654,819.04, 903,641.12 and 368,339.12 is: 508,302.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,819.04 : 903,641.12 = 368,339.12 : x
  2. Step 2: Convert to fraction form
    654,819.04/903,641.12 = 368,339.12/x
  3. Step 3: Cross multiply
    654,819.04x = 903,641.12 × 368,339.12
  4. Step 4: Simplify right side
    654,819.04x = 332,846,374,936.61
  5. Step 5: Solve for x
    x = 332,846,374,936.61/654,819.04
  6. Step 6: Final answer
    x = 508,302.84

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Double scale
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Similar ratio
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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.