Home / 905,660.16-1,249,823.94-497,799.72

Finding the Fourth Proportional to 905,660.16, 1,249,823.94 and 497,799.72

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Solution

The fourth proportional to 905,660.16, 1,249,823.94 and 497,799.72 is: 686,970.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,660.16 : 1,249,823.94 = 497,799.72 : x
  2. Step 2: Convert to fraction form
    905,660.16/1,249,823.94 = 497,799.72/x
  3. Step 3: Cross multiply
    905,660.16x = 1,249,823.94 × 497,799.72
  4. Step 4: Simplify right side
    905,660.16x = 622,162,007,381.30
  5. Step 5: Solve for x
    x = 622,162,007,381.30/905,660.16
  6. Step 6: Final answer
    x = 686,970.71

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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.