Home / 693,146.16-956,507.45-387,161.64

Finding the Fourth Proportional to 693,146.16, 956,507.45 and 387,161.64

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Solution

The fourth proportional to 693,146.16, 956,507.45 and 387,161.64 is: 534,263.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,146.16 : 956,507.45 = 387,161.64 : x
  2. Step 2: Convert to fraction form
    693,146.16/956,507.45 = 387,161.64/x
  3. Step 3: Cross multiply
    693,146.16x = 956,507.45 × 387,161.64
  4. Step 4: Simplify right side
    693,146.16x = 370,322,991,078.41
  5. Step 5: Solve for x
    x = 370,322,991,078.41/693,146.16
  6. Step 6: Final answer
    x = 534,263.93

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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.