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Finding the Fourth Proportional to 713,615.20, 1,068,932.40 and 334,859.20

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Solution

The fourth proportional to 713,615.20, 1,068,932.40 and 334,859.20 is: 501,589.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,615.20 : 1,068,932.40 = 334,859.20 : x
  2. Step 2: Convert to fraction form
    713,615.20/1,068,932.40 = 334,859.20/x
  3. Step 3: Cross multiply
    713,615.20x = 1,068,932.40 × 334,859.20
  4. Step 4: Simplify right side
    713,615.20x = 357,941,848,318.08
  5. Step 5: Solve for x
    x = 357,941,848,318.08/713,615.20
  6. Step 6: Final answer
    x = 501,589.44

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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.