Home / 818,570.80-1,227,856.20-257,532.40

Finding the Fourth Proportional to 818,570.80, 1,227,856.20 and 257,532.40

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Solution

The fourth proportional to 818,570.80, 1,227,856.20 and 257,532.40 is: 386,298.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,570.80 : 1,227,856.20 = 257,532.40 : x
  2. Step 2: Convert to fraction form
    818,570.80/1,227,856.20 = 257,532.40/x
  3. Step 3: Cross multiply
    818,570.80x = 1,227,856.20 × 257,532.40
  4. Step 4: Simplify right side
    818,570.80x = 316,212,754,040.88
  5. Step 5: Solve for x
    x = 316,212,754,040.88/818,570.80
  6. Step 6: Final answer
    x = 386,298.60

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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.