Home / 898,082.85-1,240,975.50-639,510.88

Finding the Fourth Proportional to 898,082.85, 1,240,975.50 and 639,510.88

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Solution

The fourth proportional to 898,082.85, 1,240,975.50 and 639,510.88 is: 883,679.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,082.85 : 1,240,975.50 = 639,510.88 : x
  2. Step 2: Convert to fraction form
    898,082.85/1,240,975.50 = 639,510.88/x
  3. Step 3: Cross multiply
    898,082.85x = 1,240,975.50 × 639,510.88
  4. Step 4: Simplify right side
    898,082.85x = 793,617,334,063.44
  5. Step 5: Solve for x
    x = 793,617,334,063.44/898,082.85
  6. Step 6: Final answer
    x = 883,679.42

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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.