Home / 686,952.03-948,107.34-381,126.91

Finding the Fourth Proportional to 686,952.03, 948,107.34 and 381,126.91

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Solution

The fourth proportional to 686,952.03, 948,107.34 and 381,126.91 is: 526,018.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,952.03 : 948,107.34 = 381,126.91 : x
  2. Step 2: Convert to fraction form
    686,952.03/948,107.34 = 381,126.91/x
  3. Step 3: Cross multiply
    686,952.03x = 948,107.34 × 381,126.91
  4. Step 4: Simplify right side
    686,952.03x = 361,349,218,936.89
  5. Step 5: Solve for x
    x = 361,349,218,936.89/686,952.03
  6. Step 6: Final answer
    x = 526,018.13

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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.