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Finding the Fourth Proportional to 674,058.85, 930,207.54 and 383,656.23

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Solution

The fourth proportional to 674,058.85, 930,207.54 and 383,656.23 is: 529,449.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,058.85 : 930,207.54 = 383,656.23 : x
  2. Step 2: Convert to fraction form
    674,058.85/930,207.54 = 383,656.23/x
  3. Step 3: Cross multiply
    674,058.85x = 930,207.54 × 383,656.23
  4. Step 4: Simplify right side
    674,058.85x = 356,879,919,352.69
  5. Step 5: Solve for x
    x = 356,879,919,352.69/674,058.85
  6. Step 6: Final answer
    x = 529,449.20

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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.