Home / 805,006.05-1,111,013.73-519,357.12

Finding the Fourth Proportional to 805,006.05, 1,111,013.73 and 519,357.12

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Solution

The fourth proportional to 805,006.05, 1,111,013.73 and 519,357.12 is: 716,780.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,006.05 : 1,111,013.73 = 519,357.12 : x
  2. Step 2: Convert to fraction form
    805,006.05/1,111,013.73 = 519,357.12/x
  3. Step 3: Cross multiply
    805,006.05x = 1,111,013.73 × 519,357.12
  4. Step 4: Simplify right side
    805,006.05x = 577,012,891,093.26
  5. Step 5: Solve for x
    x = 577,012,891,093.26/805,006.05
  6. Step 6: Final answer
    x = 716,780.81

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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.