Home / 905,624.13-1,249,789.41-497,718.57

Finding the Fourth Proportional to 905,624.13, 1,249,789.41 and 497,718.57

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Solution

The fourth proportional to 905,624.13, 1,249,789.41 and 497,718.57 is: 686,867.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,624.13 : 1,249,789.41 = 497,718.57 : x
  2. Step 2: Convert to fraction form
    905,624.13/1,249,789.41 = 497,718.57/x
  3. Step 3: Cross multiply
    905,624.13x = 1,249,789.41 × 497,718.57
  4. Step 4: Simplify right side
    905,624.13x = 622,043,397,946.34
  5. Step 5: Solve for x
    x = 622,043,397,946.34/905,624.13
  6. Step 6: Final answer
    x = 686,867.08

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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.