Home / 1,038,329.28-1,432,339.20-716,198.76

Finding the Fourth Proportional to 1,038,329.28, 1,432,339.20 and 716,198.76

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Solution

The fourth proportional to 1,038,329.28, 1,432,339.20 and 716,198.76 is: 987,971.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,329.28 : 1,432,339.20 = 716,198.76 : x
  2. Step 2: Convert to fraction form
    1,038,329.28/1,432,339.20 = 716,198.76/x
  3. Step 3: Cross multiply
    1,038,329.28x = 1,432,339.20 × 716,198.76
  4. Step 4: Simplify right side
    1,038,329.28x = 1,025,839,558,939.39
  5. Step 5: Solve for x
    x = 1,025,839,558,939.39/1,038,329.28
  6. Step 6: Final answer
    x = 987,971.33

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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.