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Finding the Fourth Proportional to 988,853.86, 1,364,645.10 and 559,198

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Solution

The fourth proportional to 988,853.86, 1,364,645.10 and 559,198 is: 771,708.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,853.86 : 1,364,645.10 = 559,198 : x
  2. Step 2: Convert to fraction form
    988,853.86/1,364,645.10 = 559,198/x
  3. Step 3: Cross multiply
    988,853.86x = 1,364,645.10 × 559,198
  4. Step 4: Simplify right side
    988,853.86x = 763,106,810,629.80
  5. Step 5: Solve for x
    x = 763,106,810,629.80/988,853.86
  6. Step 6: Final answer
    x = 771,708.38

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1.5x scale

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.