Home / 1,205,176.86-1,663,088.22-661,299.12

Finding the Fourth Proportional to 1,205,176.86, 1,663,088.22 and 661,299.12

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Solution

The fourth proportional to 1,205,176.86, 1,663,088.22 and 661,299.12 is: 912,562.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,176.86 : 1,663,088.22 = 661,299.12 : x
  2. Step 2: Convert to fraction form
    1,205,176.86/1,663,088.22 = 661,299.12/x
  3. Step 3: Cross multiply
    1,205,176.86x = 1,663,088.22 × 661,299.12
  4. Step 4: Simplify right side
    1,205,176.86x = 1,099,798,776,368.37
  5. Step 5: Solve for x
    x = 1,099,798,776,368.37/1,205,176.86
  6. Step 6: Final answer
    x = 912,562.14

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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.