Home / 1,663,390.40-2,295,224.16-938,206.40

Finding the Fourth Proportional to 1,663,390.40, 2,295,224.16 and 938,206.40

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Solution

The fourth proportional to 1,663,390.40, 2,295,224.16 and 938,206.40 is: 1,294,581.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663,390.40 : 2,295,224.16 = 938,206.40 : x
  2. Step 2: Convert to fraction form
    1,663,390.40/2,295,224.16 = 938,206.40/x
  3. Step 3: Cross multiply
    1,663,390.40x = 2,295,224.16 × 938,206.40
  4. Step 4: Simplify right side
    1,663,390.40x = 2,153,393,996,346.62
  5. Step 5: Solve for x
    x = 2,153,393,996,346.62/1,663,390.40
  6. Step 6: Final answer
    x = 1,294,581.23

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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.