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Finding the Fourth Proportional to 440,441.10, 660,661.65 and 316,025.10

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Solution

The fourth proportional to 440,441.10, 660,661.65 and 316,025.10 is: 474,037.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,441.10 : 660,661.65 = 316,025.10 : x
  2. Step 2: Convert to fraction form
    440,441.10/660,661.65 = 316,025.10/x
  3. Step 3: Cross multiply
    440,441.10x = 660,661.65 × 316,025.10
  4. Step 4: Simplify right side
    440,441.10x = 208,785,664,007.42
  5. Step 5: Solve for x
    x = 208,785,664,007.42/440,441.10
  6. Step 6: Final answer
    x = 474,037.65

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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.