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Finding the Fourth Proportional to 463,387.20, 693,888.48 and 321,030.24

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Solution

The fourth proportional to 463,387.20, 693,888.48 and 321,030.24 is: 480,719.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,387.20 : 693,888.48 = 321,030.24 : x
  2. Step 2: Convert to fraction form
    463,387.20/693,888.48 = 321,030.24/x
  3. Step 3: Cross multiply
    463,387.20x = 693,888.48 × 321,030.24
  4. Step 4: Simplify right side
    463,387.20x = 222,759,185,267.64
  5. Step 5: Solve for x
    x = 222,759,185,267.64/463,387.20
  6. Step 6: Final answer
    x = 480,719.33

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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.