Home / 1,205,368.62-1,663,403.46-661,513.21

Finding the Fourth Proportional to 1,205,368.62, 1,663,403.46 and 661,513.21

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Solution

The fourth proportional to 1,205,368.62, 1,663,403.46 and 661,513.21 is: 912,885.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,368.62 : 1,663,403.46 = 661,513.21 : x
  2. Step 2: Convert to fraction form
    1,205,368.62/1,663,403.46 = 661,513.21/x
  3. Step 3: Cross multiply
    1,205,368.62x = 1,663,403.46 × 661,513.21
  4. Step 4: Simplify right side
    1,205,368.62x = 1,100,363,362,349.71
  5. Step 5: Solve for x
    x = 1,100,363,362,349.71/1,205,368.62
  6. Step 6: Final answer
    x = 912,885.36

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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.