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Finding the Fourth Proportional to 370,783.70, 556,175.55 and 202,238.90

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Solution

The fourth proportional to 370,783.70, 556,175.55 and 202,238.90 is: 303,358.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,783.70 : 556,175.55 = 202,238.90 : x
  2. Step 2: Convert to fraction form
    370,783.70/556,175.55 = 202,238.90/x
  3. Step 3: Cross multiply
    370,783.70x = 556,175.55 × 202,238.90
  4. Step 4: Simplify right side
    370,783.70x = 112,480,331,438.90
  5. Step 5: Solve for x
    x = 112,480,331,438.90/370,783.70
  6. Step 6: Final answer
    x = 303,358.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.