Home / 879,606.15-1,213,986.74-557,346.26

Finding the Fourth Proportional to 879,606.15, 1,213,986.74 and 557,346.26

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Solution

The fourth proportional to 879,606.15, 1,213,986.74 and 557,346.26 is: 769,220.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,606.15 : 1,213,986.74 = 557,346.26 : x
  2. Step 2: Convert to fraction form
    879,606.15/1,213,986.74 = 557,346.26/x
  3. Step 3: Cross multiply
    879,606.15x = 1,213,986.74 × 557,346.26
  4. Step 4: Simplify right side
    879,606.15x = 676,610,960,371.93
  5. Step 5: Solve for x
    x = 676,610,960,371.93/879,606.15
  6. Step 6: Final answer
    x = 769,220.36

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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.