Home / 689,520.52-951,574.98-403,208.20

Finding the Fourth Proportional to 689,520.52, 951,574.98 and 403,208.20

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Solution

The fourth proportional to 689,520.52, 951,574.98 and 403,208.20 is: 556,448.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,520.52 : 951,574.98 = 403,208.20 : x
  2. Step 2: Convert to fraction form
    689,520.52/951,574.98 = 403,208.20/x
  3. Step 3: Cross multiply
    689,520.52x = 951,574.98 × 403,208.20
  4. Step 4: Simplify right side
    689,520.52x = 383,682,834,850.84
  5. Step 5: Solve for x
    x = 383,682,834,850.84/689,520.52
  6. Step 6: Final answer
    x = 556,448.75

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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.