Home / 905,658.28-1,249,821.36-497,797.83

Finding the Fourth Proportional to 905,658.28, 1,249,821.36 and 497,797.83

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Solution

The fourth proportional to 905,658.28, 1,249,821.36 and 497,797.83 is: 686,968.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,658.28 : 1,249,821.36 = 497,797.83 : x
  2. Step 2: Convert to fraction form
    905,658.28/1,249,821.36 = 497,797.83/x
  3. Step 3: Cross multiply
    905,658.28x = 1,249,821.36 × 497,797.83
  4. Step 4: Simplify right side
    905,658.28x = 622,158,360,895.65
  5. Step 5: Solve for x
    x = 622,158,360,895.65/905,658.28
  6. Step 6: Final answer
    x = 686,968.12

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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.