Home / 986,339.40-1,361,220.30-556,657.08

Finding the Fourth Proportional to 986,339.40, 1,361,220.30 and 556,657.08

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Solution

The fourth proportional to 986,339.40, 1,361,220.30 and 556,657.08 is: 768,227.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,339.40 : 1,361,220.30 = 556,657.08 : x
  2. Step 2: Convert to fraction form
    986,339.40/1,361,220.30 = 556,657.08/x
  3. Step 3: Cross multiply
    986,339.40x = 1,361,220.30 × 556,657.08
  4. Step 4: Simplify right side
    986,339.40x = 757,732,917,434.72
  5. Step 5: Solve for x
    x = 757,732,917,434.72/986,339.40
  6. Step 6: Final answer
    x = 768,227.36

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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.