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Finding the Fourth Proportional to 673,188.16, 928,935.12 and 371,362.72

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Solution

The fourth proportional to 673,188.16, 928,935.12 and 371,362.72 is: 512,444.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,188.16 : 928,935.12 = 371,362.72 : x
  2. Step 2: Convert to fraction form
    673,188.16/928,935.12 = 371,362.72/x
  3. Step 3: Cross multiply
    673,188.16x = 928,935.12 × 371,362.72
  4. Step 4: Simplify right side
    673,188.16x = 344,971,872,866.73
  5. Step 5: Solve for x
    x = 344,971,872,866.73/673,188.16
  6. Step 6: Final answer
    x = 512,444.95

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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.