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Finding the Fourth Proportional to 217,411.60, 326,117.40 and 186,307.60

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Solution

The fourth proportional to 217,411.60, 326,117.40 and 186,307.60 is: 279,461.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,411.60 : 326,117.40 = 186,307.60 : x
  2. Step 2: Convert to fraction form
    217,411.60/326,117.40 = 186,307.60/x
  3. Step 3: Cross multiply
    217,411.60x = 326,117.40 × 186,307.60
  4. Step 4: Simplify right side
    217,411.60x = 60,758,150,112.24
  5. Step 5: Solve for x
    x = 60,758,150,112.24/217,411.60
  6. Step 6: Final answer
    x = 279,461.40

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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.