Home / 930,921.28-1,284,672.57-528,513.28

Finding the Fourth Proportional to 930,921.28, 1,284,672.57 and 528,513.28

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Solution

The fourth proportional to 930,921.28, 1,284,672.57 and 528,513.28 is: 729,349.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,921.28 : 1,284,672.57 = 528,513.28 : x
  2. Step 2: Convert to fraction form
    930,921.28/1,284,672.57 = 528,513.28/x
  3. Step 3: Cross multiply
    930,921.28x = 1,284,672.57 × 528,513.28
  4. Step 4: Simplify right side
    930,921.28x = 678,966,513,696.73
  5. Step 5: Solve for x
    x = 678,966,513,696.73/930,921.28
  6. Step 6: Final answer
    x = 729,349.01

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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.