Home / 926,855.52-1,278,763.38-518,897.40

Finding the Fourth Proportional to 926,855.52, 1,278,763.38 and 518,897.40

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Solution

The fourth proportional to 926,855.52, 1,278,763.38 and 518,897.40 is: 715,912.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,855.52 : 1,278,763.38 = 518,897.40 : x
  2. Step 2: Convert to fraction form
    926,855.52/1,278,763.38 = 518,897.40/x
  3. Step 3: Cross multiply
    926,855.52x = 1,278,763.38 × 518,897.40
  4. Step 4: Simplify right side
    926,855.52x = 663,546,993,097.21
  5. Step 5: Solve for x
    x = 663,546,993,097.21/926,855.52
  6. Step 6: Final answer
    x = 715,912.00

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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.