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Finding the Fourth Proportional to 617,512.80, 926,038.80 and 243,458.40

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Solution

The fourth proportional to 617,512.80, 926,038.80 and 243,458.40 is: 365,096.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,512.80 : 926,038.80 = 243,458.40 : x
  2. Step 2: Convert to fraction form
    617,512.80/926,038.80 = 243,458.40/x
  3. Step 3: Cross multiply
    617,512.80x = 926,038.80 × 243,458.40
  4. Step 4: Simplify right side
    617,512.80x = 225,451,924,585.92
  5. Step 5: Solve for x
    x = 225,451,924,585.92/617,512.80
  6. Step 6: Final answer
    x = 365,096.76

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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.