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Finding the Fourth Proportional to 568,303.14, 784,254.47 and 313,654.32

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Solution

The fourth proportional to 568,303.14, 784,254.47 and 313,654.32 is: 432,840.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,303.14 : 784,254.47 = 313,654.32 : x
  2. Step 2: Convert to fraction form
    568,303.14/784,254.47 = 313,654.32/x
  3. Step 3: Cross multiply
    568,303.14x = 784,254.47 × 313,654.32
  4. Step 4: Simplify right side
    568,303.14x = 245,984,802,494.81
  5. Step 5: Solve for x
    x = 245,984,802,494.81/568,303.14
  6. Step 6: Final answer
    x = 432,840.83

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1.5x scale

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.