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Finding the Fourth Proportional to 566,079.64, 780,865.50 and 353,743

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Solution

The fourth proportional to 566,079.64, 780,865.50 and 353,743 is: 487,962.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,079.64 : 780,865.50 = 353,743 : x
  2. Step 2: Convert to fraction form
    566,079.64/780,865.50 = 353,743/x
  3. Step 3: Cross multiply
    566,079.64x = 780,865.50 × 353,743
  4. Step 4: Simplify right side
    566,079.64x = 276,225,704,566.50
  5. Step 5: Solve for x
    x = 276,225,704,566.50/566,079.64
  6. Step 6: Final answer
    x = 487,962.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.