Home / 645,936.24-891,374.04-359,466.48

Finding the Fourth Proportional to 645,936.24, 891,374.04 and 359,466.48

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Solution

The fourth proportional to 645,936.24, 891,374.04 and 359,466.48 is: 496,053.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,936.24 : 891,374.04 = 359,466.48 : x
  2. Step 2: Convert to fraction form
    645,936.24/891,374.04 = 359,466.48/x
  3. Step 3: Cross multiply
    645,936.24x = 891,374.04 × 359,466.48
  4. Step 4: Simplify right side
    645,936.24x = 320,419,088,522.18
  5. Step 5: Solve for x
    x = 320,419,088,522.18/645,936.24
  6. Step 6: Final answer
    x = 496,053.74

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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.