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Finding the Fourth Proportional to 693,126.84, 956,452.62 and 387,176.47

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Solution

The fourth proportional to 693,126.84, 956,452.62 and 387,176.47 is: 534,268.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,126.84 : 956,452.62 = 387,176.47 : x
  2. Step 2: Convert to fraction form
    693,126.84/956,452.62 = 387,176.47/x
  3. Step 3: Cross multiply
    693,126.84x = 956,452.62 × 387,176.47
  4. Step 4: Simplify right side
    693,126.84x = 370,315,949,133.85
  5. Step 5: Solve for x
    x = 370,315,949,133.85/693,126.84
  6. Step 6: Final answer
    x = 534,268.67

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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.