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Finding the Fourth Proportional to 673,065.54, 928,793.94 and 386,585.70

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Solution

The fourth proportional to 673,065.54, 928,793.94 and 386,585.70 is: 533,467.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,065.54 : 928,793.94 = 386,585.70 : x
  2. Step 2: Convert to fraction form
    673,065.54/928,793.94 = 386,585.70/x
  3. Step 3: Cross multiply
    673,065.54x = 928,793.94 × 386,585.70
  4. Step 4: Simplify right side
    673,065.54x = 359,058,455,450.66
  5. Step 5: Solve for x
    x = 359,058,455,450.66/673,065.54
  6. Step 6: Final answer
    x = 533,467.30

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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.