Home / 687,095.11-948,192.37-381,171.50

Finding the Fourth Proportional to 687,095.11, 948,192.37 and 381,171.50

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Solution

The fourth proportional to 687,095.11, 948,192.37 and 381,171.50 is: 526,017.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,095.11 : 948,192.37 = 381,171.50 : x
  2. Step 2: Convert to fraction form
    687,095.11/948,192.37 = 381,171.50/x
  3. Step 3: Cross multiply
    687,095.11x = 948,192.37 × 381,171.50
  4. Step 4: Simplify right side
    687,095.11x = 361,423,902,267.56
  5. Step 5: Solve for x
    x = 361,423,902,267.56/687,095.11
  6. Step 6: Final answer
    x = 526,017.28

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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.