Home / 384,772.12-530,975.34-215,007.64

Finding the Fourth Proportional to 384,772.12, 530,975.34 and 215,007.64

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Solution

The fourth proportional to 384,772.12, 530,975.34 and 215,007.64 is: 296,704.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,772.12 : 530,975.34 = 215,007.64 : x
  2. Step 2: Convert to fraction form
    384,772.12/530,975.34 = 215,007.64/x
  3. Step 3: Cross multiply
    384,772.12x = 530,975.34 × 215,007.64
  4. Step 4: Simplify right side
    384,772.12x = 114,163,754,751.60
  5. Step 5: Solve for x
    x = 114,163,754,751.60/384,772.12
  6. Step 6: Final answer
    x = 296,704.85

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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.