Home / 930,920.28-1,284,671.19-528,512.28

Finding the Fourth Proportional to 930,920.28, 1,284,671.19 and 528,512.28

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Solution

The fourth proportional to 930,920.28, 1,284,671.19 and 528,512.28 is: 729,347.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,920.28 : 1,284,671.19 = 528,512.28 : x
  2. Step 2: Convert to fraction form
    930,920.28/1,284,671.19 = 528,512.28/x
  3. Step 3: Cross multiply
    930,920.28x = 1,284,671.19 × 528,512.28
  4. Step 4: Simplify right side
    930,920.28x = 678,964,499,677.21
  5. Step 5: Solve for x
    x = 678,964,499,677.21/930,920.28
  6. Step 6: Final answer
    x = 729,347.63

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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.