Home / 346,540.18-519,809.91-130,439.27

Finding the Fourth Proportional to 346,540.18, 519,809.91 and 130,439.27

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Solution

The fourth proportional to 346,540.18, 519,809.91 and 130,439.27 is: 195,658.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,540.18 : 519,809.91 = 130,439.27 : x
  2. Step 2: Convert to fraction form
    346,540.18/519,809.91 = 130,439.27/x
  3. Step 3: Cross multiply
    346,540.18x = 519,809.91 × 130,439.27
  4. Step 4: Simplify right side
    346,540.18x = 67,803,625,199.17
  5. Step 5: Solve for x
    x = 67,803,625,199.17/346,540.18
  6. Step 6: Final answer
    x = 195,658.77

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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.