Home / 813,157.77-1,122,173.97-473,647.89

Finding the Fourth Proportional to 813,157.77, 1,122,173.97 and 473,647.89

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Solution

The fourth proportional to 813,157.77, 1,122,173.97 and 473,647.89 is: 653,643.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,157.77 : 1,122,173.97 = 473,647.89 : x
  2. Step 2: Convert to fraction form
    813,157.77/1,122,173.97 = 473,647.89/x
  3. Step 3: Cross multiply
    813,157.77x = 1,122,173.97 × 473,647.89
  4. Step 4: Simplify right side
    813,157.77x = 531,515,333,103.42
  5. Step 5: Solve for x
    x = 531,515,333,103.42/813,157.77
  6. Step 6: Final answer
    x = 653,643.55

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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.