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Finding the Fourth Proportional to 568,303.64, 784,255.16 and 313,654.82

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Solution

The fourth proportional to 568,303.64, 784,255.16 and 313,654.82 is: 432,841.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,303.64 : 784,255.16 = 313,654.82 : x
  2. Step 2: Convert to fraction form
    568,303.64/784,255.16 = 313,654.82/x
  3. Step 3: Cross multiply
    568,303.64x = 784,255.16 × 313,654.82
  4. Step 4: Simplify right side
    568,303.64x = 245,985,411,043.87
  5. Step 5: Solve for x
    x = 245,985,411,043.87/568,303.64
  6. Step 6: Final answer
    x = 432,841.52

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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.