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Finding the Fourth Proportional to 207,491.40, 310,799.70 and 207,491.40

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Solution

The fourth proportional to 207,491.40, 310,799.70 and 207,491.40 is: 310,799.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,491.40 : 310,799.70 = 207,491.40 : x
  2. Step 2: Convert to fraction form
    207,491.40/310,799.70 = 207,491.40/x
  3. Step 3: Cross multiply
    207,491.40x = 310,799.70 × 207,491.40
  4. Step 4: Simplify right side
    207,491.40x = 64,488,264,872.58
  5. Step 5: Solve for x
    x = 64,488,264,872.58/207,491.40
  6. Step 6: Final answer
    x = 310,799.70

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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.