Home / 400,528.38-553,329.48-263,033.52

Finding the Fourth Proportional to 400,528.38, 553,329.48 and 263,033.52

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Solution

The fourth proportional to 400,528.38, 553,329.48 and 263,033.52 is: 363,380.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,528.38 : 553,329.48 = 263,033.52 : x
  2. Step 2: Convert to fraction form
    400,528.38/553,329.48 = 263,033.52/x
  3. Step 3: Cross multiply
    400,528.38x = 553,329.48 × 263,033.52
  4. Step 4: Simplify right side
    400,528.38x = 145,544,200,844.17
  5. Step 5: Solve for x
    x = 145,544,200,844.17/400,528.38
  6. Step 6: Final answer
    x = 363,380.49

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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.