Home / 857,923.42-1,286,895.04-258,889.77

Finding the Fourth Proportional to 857,923.42, 1,286,895.04 and 258,889.77

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Solution

The fourth proportional to 857,923.42, 1,286,895.04 and 258,889.77 is: 388,337.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,923.42 : 1,286,895.04 = 258,889.77 : x
  2. Step 2: Convert to fraction form
    857,923.42/1,286,895.04 = 258,889.77/x
  3. Step 3: Cross multiply
    857,923.42x = 1,286,895.04 × 258,889.77
  4. Step 4: Simplify right side
    857,923.42x = 333,163,961,728.77
  5. Step 5: Solve for x
    x = 333,163,961,728.77/857,923.42
  6. Step 6: Final answer
    x = 388,337.65

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.