Home / 865,263.28-1,297,675.84-257,911.44

Finding the Fourth Proportional to 865,263.28, 1,297,675.84 and 257,911.44

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Solution

The fourth proportional to 865,263.28, 1,297,675.84 and 257,911.44 is: 386,801.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,263.28 : 1,297,675.84 = 257,911.44 : x
  2. Step 2: Convert to fraction form
    865,263.28/1,297,675.84 = 257,911.44/x
  3. Step 3: Cross multiply
    865,263.28x = 1,297,675.84 × 257,911.44
  4. Step 4: Simplify right side
    865,263.28x = 334,685,444,547.61
  5. Step 5: Solve for x
    x = 334,685,444,547.61/865,263.28
  6. Step 6: Final answer
    x = 386,801.86

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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.