Home / 693,439.51-956,928.01-387,518.27

Finding the Fourth Proportional to 693,439.51, 956,928.01 and 387,518.27

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Solution

The fourth proportional to 693,439.51, 956,928.01 and 387,518.27 is: 534,764.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,439.51 : 956,928.01 = 387,518.27 : x
  2. Step 2: Convert to fraction form
    693,439.51/956,928.01 = 387,518.27/x
  3. Step 3: Cross multiply
    693,439.51x = 956,928.01 × 387,518.27
  4. Step 4: Simplify right side
    693,439.51x = 370,827,086,949.74
  5. Step 5: Solve for x
    x = 370,827,086,949.74/693,439.51
  6. Step 6: Final answer
    x = 534,764.87

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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.