Home / 926,856.52-1,278,764.76-518,898.40

Finding the Fourth Proportional to 926,856.52, 1,278,764.76 and 518,898.40

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Solution

The fourth proportional to 926,856.52, 1,278,764.76 and 518,898.40 is: 715,913.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,856.52 : 1,278,764.76 = 518,898.40 : x
  2. Step 2: Convert to fraction form
    926,856.52/1,278,764.76 = 518,898.40/x
  3. Step 3: Cross multiply
    926,856.52x = 1,278,764.76 × 518,898.40
  4. Step 4: Simplify right side
    926,856.52x = 663,548,987,940.38
  5. Step 5: Solve for x
    x = 663,548,987,940.38/926,856.52
  6. Step 6: Final answer
    x = 715,913.38

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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.