Home / 691,810.14-954,552.16-420,020.94

Finding the Fourth Proportional to 691,810.14, 954,552.16 and 420,020.94

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Solution

The fourth proportional to 691,810.14, 954,552.16 and 420,020.94 is: 579,540.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,810.14 : 954,552.16 = 420,020.94 : x
  2. Step 2: Convert to fraction form
    691,810.14/954,552.16 = 420,020.94/x
  3. Step 3: Cross multiply
    691,810.14x = 954,552.16 × 420,020.94
  4. Step 4: Simplify right side
    691,810.14x = 400,931,895,522.23
  5. Step 5: Solve for x
    x = 400,931,895,522.23/691,810.14
  6. Step 6: Final answer
    x = 579,540.36

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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.