Home / 905,140.26-1,248,539.51-537,367.78

Finding the Fourth Proportional to 905,140.26, 1,248,539.51 and 537,367.78

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Solution

The fourth proportional to 905,140.26, 1,248,539.51 and 537,367.78 is: 741,238.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,140.26 : 1,248,539.51 = 537,367.78 : x
  2. Step 2: Convert to fraction form
    905,140.26/1,248,539.51 = 537,367.78/x
  3. Step 3: Cross multiply
    905,140.26x = 1,248,539.51 × 537,367.78
  4. Step 4: Simplify right side
    905,140.26x = 670,924,905,612.45
  5. Step 5: Solve for x
    x = 670,924,905,612.45/905,140.26
  6. Step 6: Final answer
    x = 741,238.61

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Double scale
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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.