Home / 905,572.24-1,249,608.54-497,669.38

Finding the Fourth Proportional to 905,572.24, 1,249,608.54 and 497,669.38

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Solution

The fourth proportional to 905,572.24, 1,249,608.54 and 497,669.38 is: 686,739.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,572.24 : 1,249,608.54 = 497,669.38 : x
  2. Step 2: Convert to fraction form
    905,572.24/1,249,608.54 = 497,669.38/x
  3. Step 3: Cross multiply
    905,572.24x = 1,249,608.54 × 497,669.38
  4. Step 4: Simplify right side
    905,572.24x = 621,891,907,344.51
  5. Step 5: Solve for x
    x = 621,891,907,344.51/905,572.24
  6. Step 6: Final answer
    x = 686,739.15

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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.