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Finding the Fourth Proportional to 398,552.40, 597,828.60 and 376,779.60

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Solution

The fourth proportional to 398,552.40, 597,828.60 and 376,779.60 is: 565,169.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,552.40 : 597,828.60 = 376,779.60 : x
  2. Step 2: Convert to fraction form
    398,552.40/597,828.60 = 376,779.60/x
  3. Step 3: Cross multiply
    398,552.40x = 597,828.60 × 376,779.60
  4. Step 4: Simplify right side
    398,552.40x = 225,249,620,776.56
  5. Step 5: Solve for x
    x = 225,249,620,776.56/398,552.40
  6. Step 6: Final answer
    x = 565,169.40

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Similar ratio
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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.