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Finding the Fourth Proportional to 674,061.10, 930,210.65 and 383,658.48

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Solution

The fourth proportional to 674,061.10, 930,210.65 and 383,658.48 is: 529,452.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,061.10 : 930,210.65 = 383,658.48 : x
  2. Step 2: Convert to fraction form
    674,061.10/930,210.65 = 383,658.48/x
  3. Step 3: Cross multiply
    674,061.10x = 930,210.65 × 383,658.48
  4. Step 4: Simplify right side
    674,061.10x = 356,883,203,579.24
  5. Step 5: Solve for x
    x = 356,883,203,579.24/674,061.10
  6. Step 6: Final answer
    x = 529,452.31

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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.