Home / 530,687.16-732,357.05-288,974.45

Finding the Fourth Proportional to 530,687.16, 732,357.05 and 288,974.45

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Solution

The fourth proportional to 530,687.16, 732,357.05 and 288,974.45 is: 398,789.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,687.16 : 732,357.05 = 288,974.45 : x
  2. Step 2: Convert to fraction form
    530,687.16/732,357.05 = 288,974.45/x
  3. Step 3: Cross multiply
    530,687.16x = 732,357.05 × 288,974.45
  4. Step 4: Simplify right side
    530,687.16x = 211,632,476,113.39
  5. Step 5: Solve for x
    x = 211,632,476,113.39/530,687.16
  6. Step 6: Final answer
    x = 398,789.52

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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.