Home / 348,867.60-523,301.40-86,211.60

Finding the Fourth Proportional to 348,867.60, 523,301.40 and 86,211.60

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Solution

The fourth proportional to 348,867.60, 523,301.40 and 86,211.60 is: 129,317.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,867.60 : 523,301.40 = 86,211.60 : x
  2. Step 2: Convert to fraction form
    348,867.60/523,301.40 = 86,211.60/x
  3. Step 3: Cross multiply
    348,867.60x = 523,301.40 × 86,211.60
  4. Step 4: Simplify right side
    348,867.60x = 45,114,650,976.24
  5. Step 5: Solve for x
    x = 45,114,650,976.24/348,867.60
  6. Step 6: Final answer
    x = 129,317.40

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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.