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Finding the Fourth Proportional to 355,943.56, 533,915.34 and 163,798.60

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Solution

The fourth proportional to 355,943.56, 533,915.34 and 163,798.60 is: 245,697.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,943.56 : 533,915.34 = 163,798.60 : x
  2. Step 2: Convert to fraction form
    355,943.56/533,915.34 = 163,798.60/x
  3. Step 3: Cross multiply
    355,943.56x = 533,915.34 × 163,798.60
  4. Step 4: Simplify right side
    355,943.56x = 87,454,585,210.52
  5. Step 5: Solve for x
    x = 87,454,585,210.52/355,943.56
  6. Step 6: Final answer
    x = 245,697.90

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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.