Home / 916,638.43-1,264,942.01-508,716.59

Finding the Fourth Proportional to 916,638.43, 1,264,942.01 and 508,716.59

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Solution

The fourth proportional to 916,638.43, 1,264,942.01 and 508,716.59 is: 702,018.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,638.43 : 1,264,942.01 = 508,716.59 : x
  2. Step 2: Convert to fraction form
    916,638.43/1,264,942.01 = 508,716.59/x
  3. Step 3: Cross multiply
    916,638.43x = 1,264,942.01 × 508,716.59
  4. Step 4: Simplify right side
    916,638.43x = 643,496,983,331.36
  5. Step 5: Solve for x
    x = 643,496,983,331.36/916,638.43
  6. Step 6: Final answer
    x = 702,018.33

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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.