Home / 957,640.35-1,321,547.69-527,911.05

Finding the Fourth Proportional to 957,640.35, 1,321,547.69 and 527,911.05

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Solution

The fourth proportional to 957,640.35, 1,321,547.69 and 527,911.05 is: 728,519.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,640.35 : 1,321,547.69 = 527,911.05 : x
  2. Step 2: Convert to fraction form
    957,640.35/1,321,547.69 = 527,911.05/x
  3. Step 3: Cross multiply
    957,640.35x = 1,321,547.69 × 527,911.05
  4. Step 4: Simplify right side
    957,640.35x = 697,659,628,652.98
  5. Step 5: Solve for x
    x = 697,659,628,652.98/957,640.35
  6. Step 6: Final answer
    x = 728,519.46

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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.