Home / 910,859.28-1,257,096.63-528,886.06

Finding the Fourth Proportional to 910,859.28, 1,257,096.63 and 528,886.06

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Solution

The fourth proportional to 910,859.28, 1,257,096.63 and 528,886.06 is: 729,927.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,859.28 : 1,257,096.63 = 528,886.06 : x
  2. Step 2: Convert to fraction form
    910,859.28/1,257,096.63 = 528,886.06/x
  3. Step 3: Cross multiply
    910,859.28x = 1,257,096.63 × 528,886.06
  4. Step 4: Simplify right side
    910,859.28x = 664,860,882,520.56
  5. Step 5: Solve for x
    x = 664,860,882,520.56/910,859.28
  6. Step 6: Final answer
    x = 729,927.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.