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Finding the Fourth Proportional to 211,600.40, 317,400.60 and 183,952.40

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Solution

The fourth proportional to 211,600.40, 317,400.60 and 183,952.40 is: 275,928.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,600.40 : 317,400.60 = 183,952.40 : x
  2. Step 2: Convert to fraction form
    211,600.40/317,400.60 = 183,952.40/x
  3. Step 3: Cross multiply
    211,600.40x = 317,400.60 × 183,952.40
  4. Step 4: Simplify right side
    211,600.40x = 58,386,602,131.44
  5. Step 5: Solve for x
    x = 58,386,602,131.44/211,600.40
  6. Step 6: Final answer
    x = 275,928.60

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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.