Home / 911,528.25-1,257,934.35-503,656.38

Finding the Fourth Proportional to 911,528.25, 1,257,934.35 and 503,656.38

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Solution

The fourth proportional to 911,528.25, 1,257,934.35 and 503,656.38 is: 695,059.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,528.25 : 1,257,934.35 = 503,656.38 : x
  2. Step 2: Convert to fraction form
    911,528.25/1,257,934.35 = 503,656.38/x
  3. Step 3: Cross multiply
    911,528.25x = 1,257,934.35 × 503,656.38
  4. Step 4: Simplify right side
    911,528.25x = 633,566,660,998.65
  5. Step 5: Solve for x
    x = 633,566,660,998.65/911,528.25
  6. Step 6: Final answer
    x = 695,059.82

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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.