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Finding the Fourth Proportional to 673,930.96, 930,000.36 and 372,118.48

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Solution

The fourth proportional to 673,930.96, 930,000.36 and 372,118.48 is: 513,510.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,930.96 : 930,000.36 = 372,118.48 : x
  2. Step 2: Convert to fraction form
    673,930.96/930,000.36 = 372,118.48/x
  3. Step 3: Cross multiply
    673,930.96x = 930,000.36 × 372,118.48
  4. Step 4: Simplify right side
    673,930.96x = 346,070,320,362.65
  5. Step 5: Solve for x
    x = 346,070,320,362.65/673,930.96
  6. Step 6: Final answer
    x = 513,510.05

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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.