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Finding the Fourth Proportional to 410,059.20, 615,549.60 and 316,977.60

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Solution

The fourth proportional to 410,059.20, 615,549.60 and 316,977.60 is: 475,822.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,059.20 : 615,549.60 = 316,977.60 : x
  2. Step 2: Convert to fraction form
    410,059.20/615,549.60 = 316,977.60/x
  3. Step 3: Cross multiply
    410,059.20x = 615,549.60 × 316,977.60
  4. Step 4: Simplify right side
    410,059.20x = 195,115,434,888.96
  5. Step 5: Solve for x
    x = 195,115,434,888.96/410,059.20
  6. Step 6: Final answer
    x = 475,822.60

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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.