Home / 1,663,428.32-2,295,528.36-938,273.78

Finding the Fourth Proportional to 1,663,428.32, 2,295,528.36 and 938,273.78

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Solution

The fourth proportional to 1,663,428.32, 2,295,528.36 and 938,273.78 is: 1,294,816.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663,428.32 : 2,295,528.36 = 938,273.78 : x
  2. Step 2: Convert to fraction form
    1,663,428.32/2,295,528.36 = 938,273.78/x
  3. Step 3: Cross multiply
    1,663,428.32x = 2,295,528.36 × 938,273.78
  4. Step 4: Simplify right side
    1,663,428.32x = 2,153,834,071,434.40
  5. Step 5: Solve for x
    x = 2,153,834,071,434.40/1,663,428.32
  6. Step 6: Final answer
    x = 1,294,816.28

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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.