Home / 691,935.40-1,038,680.70-534,860.20

Finding the Fourth Proportional to 691,935.40, 1,038,680.70 and 534,860.20

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Solution

The fourth proportional to 691,935.40, 1,038,680.70 and 534,860.20 is: 802,891.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,935.40 : 1,038,680.70 = 534,860.20 : x
  2. Step 2: Convert to fraction form
    691,935.40/1,038,680.70 = 534,860.20/x
  3. Step 3: Cross multiply
    691,935.40x = 1,038,680.70 × 534,860.20
  4. Step 4: Simplify right side
    691,935.40x = 555,548,966,938.14
  5. Step 5: Solve for x
    x = 555,548,966,938.14/691,935.40
  6. Step 6: Final answer
    x = 802,891.38

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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.