Home / 754,295.12-1,040,915.72-410,128.28

Finding the Fourth Proportional to 754,295.12, 1,040,915.72 and 410,128.28

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Solution

The fourth proportional to 754,295.12, 1,040,915.72 and 410,128.28 is: 565,970.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,295.12 : 1,040,915.72 = 410,128.28 : x
  2. Step 2: Convert to fraction form
    754,295.12/1,040,915.72 = 410,128.28/x
  3. Step 3: Cross multiply
    754,295.12x = 1,040,915.72 × 410,128.28
  4. Step 4: Simplify right side
    754,295.12x = 426,908,973,868.56
  5. Step 5: Solve for x
    x = 426,908,973,868.56/754,295.12
  6. Step 6: Final answer
    x = 565,970.75

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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.