Home / 905,082.48-1,249,111.80-578,691.36

Finding the Fourth Proportional to 905,082.48, 1,249,111.80 and 578,691.36

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Solution

The fourth proportional to 905,082.48, 1,249,111.80 and 578,691.36 is: 798,656.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,082.48 : 1,249,111.80 = 578,691.36 : x
  2. Step 2: Convert to fraction form
    905,082.48/1,249,111.80 = 578,691.36/x
  3. Step 3: Cross multiply
    905,082.48x = 1,249,111.80 × 578,691.36
  4. Step 4: Simplify right side
    905,082.48x = 722,850,206,334.05
  5. Step 5: Solve for x
    x = 722,850,206,334.05/905,082.48
  6. Step 6: Final answer
    x = 798,656.72

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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.