Home / 340,934.60-512,016.30-329,875.40

Finding the Fourth Proportional to 340,934.60, 512,016.30 and 329,875.40

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Solution

The fourth proportional to 340,934.60, 512,016.30 and 329,875.40 is: 495,407.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,934.60 : 512,016.30 = 329,875.40 : x
  2. Step 2: Convert to fraction form
    340,934.60/512,016.30 = 329,875.40/x
  3. Step 3: Cross multiply
    340,934.60x = 512,016.30 × 329,875.40
  4. Step 4: Simplify right side
    340,934.60x = 168,901,581,769.02
  5. Step 5: Solve for x
    x = 168,901,581,769.02/340,934.60
  6. Step 6: Final answer
    x = 495,407.57

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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.