Home / 688,249.83-949,758.36-382,345.45

Finding the Fourth Proportional to 688,249.83, 949,758.36 and 382,345.45

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Solution

The fourth proportional to 688,249.83, 949,758.36 and 382,345.45 is: 527,622.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,249.83 : 949,758.36 = 382,345.45 : x
  2. Step 2: Convert to fraction form
    688,249.83/949,758.36 = 382,345.45/x
  3. Step 3: Cross multiply
    688,249.83x = 949,758.36 × 382,345.45
  4. Step 4: Simplify right side
    688,249.83x = 363,135,783,884.56
  5. Step 5: Solve for x
    x = 363,135,783,884.56/688,249.83
  6. Step 6: Final answer
    x = 527,622.05

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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.