Home / 925,441.60-1,388,599.80-393,417.40

Finding the Fourth Proportional to 925,441.60, 1,388,599.80 and 393,417.40

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Solution

The fourth proportional to 925,441.60, 1,388,599.80 and 393,417.40 is: 590,312.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,441.60 : 1,388,599.80 = 393,417.40 : x
  2. Step 2: Convert to fraction form
    925,441.60/1,388,599.80 = 393,417.40/x
  3. Step 3: Cross multiply
    925,441.60x = 1,388,599.80 × 393,417.40
  4. Step 4: Simplify right side
    925,441.60x = 546,299,322,956.52
  5. Step 5: Solve for x
    x = 546,299,322,956.52/925,441.60
  6. Step 6: Final answer
    x = 590,312.04

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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.