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Finding the Fourth Proportional to 528,096.40, 792,922.20 and 409,901.20

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Solution

The fourth proportional to 528,096.40, 792,922.20 and 409,901.20 is: 615,455.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,096.40 : 792,922.20 = 409,901.20 : x
  2. Step 2: Convert to fraction form
    528,096.40/792,922.20 = 409,901.20/x
  3. Step 3: Cross multiply
    528,096.40x = 792,922.20 × 409,901.20
  4. Step 4: Simplify right side
    528,096.40x = 325,019,761,286.64
  5. Step 5: Solve for x
    x = 325,019,761,286.64/528,096.40
  6. Step 6: Final answer
    x = 615,455.36

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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.