Home / 905,621.01-1,249,785.11-497,715.43

Finding the Fourth Proportional to 905,621.01, 1,249,785.11 and 497,715.43

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Solution

The fourth proportional to 905,621.01, 1,249,785.11 and 497,715.43 is: 686,862.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,621.01 : 1,249,785.11 = 497,715.43 : x
  2. Step 2: Convert to fraction form
    905,621.01/1,249,785.11 = 497,715.43/x
  3. Step 3: Cross multiply
    905,621.01x = 1,249,785.11 × 497,715.43
  4. Step 4: Simplify right side
    905,621.01x = 622,037,333,431.25
  5. Step 5: Solve for x
    x = 622,037,333,431.25/905,621.01
  6. Step 6: Final answer
    x = 686,862.75

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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.