Home / 646,197.12-891,777.60-359,706.24

Finding the Fourth Proportional to 646,197.12, 891,777.60 and 359,706.24

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Solution

The fourth proportional to 646,197.12, 891,777.60 and 359,706.24 is: 496,408.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,197.12 : 891,777.60 = 359,706.24 : x
  2. Step 2: Convert to fraction form
    646,197.12/891,777.60 = 359,706.24/x
  3. Step 3: Cross multiply
    646,197.12x = 891,777.60 × 359,706.24
  4. Step 4: Simplify right side
    646,197.12x = 320,777,967,412.22
  5. Step 5: Solve for x
    x = 320,777,967,412.22/646,197.12
  6. Step 6: Final answer
    x = 496,408.85

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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.