Home / 1,205,740.08-1,663,914.74-661,885.13

Finding the Fourth Proportional to 1,205,740.08, 1,663,914.74 and 661,885.13

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Solution

The fourth proportional to 1,205,740.08, 1,663,914.74 and 661,885.13 is: 913,397.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,740.08 : 1,663,914.74 = 661,885.13 : x
  2. Step 2: Convert to fraction form
    1,205,740.08/1,663,914.74 = 661,885.13/x
  3. Step 3: Cross multiply
    1,205,740.08x = 1,663,914.74 × 661,885.13
  4. Step 4: Simplify right side
    1,205,740.08x = 1,101,320,415,674.24
  5. Step 5: Solve for x
    x = 1,101,320,415,674.24/1,205,740.08
  6. Step 6: Final answer
    x = 913,397.87

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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.