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Finding the Fourth Proportional to 398,632.32, 597,271.86 and 240,528.60

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Solution

The fourth proportional to 398,632.32, 597,271.86 and 240,528.60 is: 360,384.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,632.32 : 597,271.86 = 240,528.60 : x
  2. Step 2: Convert to fraction form
    398,632.32/597,271.86 = 240,528.60/x
  3. Step 3: Cross multiply
    398,632.32x = 597,271.86 × 240,528.60
  4. Step 4: Simplify right side
    398,632.32x = 143,660,964,305.20
  5. Step 5: Solve for x
    x = 143,660,964,305.20/398,632.32
  6. Step 6: Final answer
    x = 360,384.64

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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.