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Finding the Fourth Proportional to 693,017.70, 956,354.22 and 387,098.34

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Solution

The fourth proportional to 693,017.70, 956,354.22 and 387,098.34 is: 534,190.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,017.70 : 956,354.22 = 387,098.34 : x
  2. Step 2: Convert to fraction form
    693,017.70/956,354.22 = 387,098.34/x
  3. Step 3: Cross multiply
    693,017.70x = 956,354.22 × 387,098.34
  4. Step 4: Simplify right side
    693,017.70x = 370,203,131,014.00
  5. Step 5: Solve for x
    x = 370,203,131,014.00/693,017.70
  6. Step 6: Final answer
    x = 534,190.01

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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.