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Finding the Fourth Proportional to 673,923.26, 930,017.31 and 368,005.88

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Solution

The fourth proportional to 673,923.26, 930,017.31 and 368,005.88 is: 507,849.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,923.26 : 930,017.31 = 368,005.88 : x
  2. Step 2: Convert to fraction form
    673,923.26/930,017.31 = 368,005.88/x
  3. Step 3: Cross multiply
    673,923.26x = 930,017.31 × 368,005.88
  4. Step 4: Simplify right side
    673,923.26x = 342,251,838,581.78
  5. Step 5: Solve for x
    x = 342,251,838,581.78/673,923.26
  6. Step 6: Final answer
    x = 507,849.87

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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.