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Finding the Fourth Proportional to 672,887.08, 928,572.54 and 366,965.92

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Solution

The fourth proportional to 672,887.08, 928,572.54 and 366,965.92 is: 506,406.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,887.08 : 928,572.54 = 366,965.92 : x
  2. Step 2: Convert to fraction form
    672,887.08/928,572.54 = 366,965.92/x
  3. Step 3: Cross multiply
    672,887.08x = 928,572.54 × 366,965.92
  4. Step 4: Simplify right side
    672,887.08x = 340,754,476,427.84
  5. Step 5: Solve for x
    x = 340,754,476,427.84/672,887.08
  6. Step 6: Final answer
    x = 506,406.63

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Double scale
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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.