Home / 1,231,799.40-1,847,526.30-390,436.20

Finding the Fourth Proportional to 1,231,799.40, 1,847,526.30 and 390,436.20

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Solution

The fourth proportional to 1,231,799.40, 1,847,526.30 and 390,436.20 is: 585,599.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,799.40 : 1,847,526.30 = 390,436.20 : x
  2. Step 2: Convert to fraction form
    1,231,799.40/1,847,526.30 = 390,436.20/x
  3. Step 3: Cross multiply
    1,231,799.40x = 1,847,526.30 × 390,436.20
  4. Step 4: Simplify right side
    1,231,799.40x = 721,341,147,972.06
  5. Step 5: Solve for x
    x = 721,341,147,972.06/1,231,799.40
  6. Step 6: Final answer
    x = 585,599.53

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Double scale
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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.