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Finding the Fourth Proportional to 506,214.55, 759,335.46 and 221,758.75

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Solution

The fourth proportional to 506,214.55, 759,335.46 and 221,758.75 is: 332,644.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,214.55 : 759,335.46 = 221,758.75 : x
  2. Step 2: Convert to fraction form
    506,214.55/759,335.46 = 221,758.75/x
  3. Step 3: Cross multiply
    506,214.55x = 759,335.46 × 221,758.75
  4. Step 4: Simplify right side
    506,214.55x = 168,389,282,440.28
  5. Step 5: Solve for x
    x = 168,389,282,440.28/506,214.55
  6. Step 6: Final answer
    x = 332,644.10

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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.