Home / 439,174.32-606,065.28-257,888.40

Finding the Fourth Proportional to 439,174.32, 606,065.28 and 257,888.40

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Solution

The fourth proportional to 439,174.32, 606,065.28 and 257,888.40 is: 355,888.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,174.32 : 606,065.28 = 257,888.40 : x
  2. Step 2: Convert to fraction form
    439,174.32/606,065.28 = 257,888.40/x
  3. Step 3: Cross multiply
    439,174.32x = 606,065.28 × 257,888.40
  4. Step 4: Simplify right side
    439,174.32x = 156,297,205,354.75
  5. Step 5: Solve for x
    x = 156,297,205,354.75/439,174.32
  6. Step 6: Final answer
    x = 355,888.76

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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.