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Finding the Fourth Proportional to 568,363.12, 784,341.18 and 313,714.38

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Solution

The fourth proportional to 568,363.12, 784,341.18 and 313,714.38 is: 432,925.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,363.12 : 784,341.18 = 313,714.38 : x
  2. Step 2: Convert to fraction form
    568,363.12/784,341.18 = 313,714.38/x
  3. Step 3: Cross multiply
    568,363.12x = 784,341.18 × 313,714.38
  4. Step 4: Simplify right side
    568,363.12x = 246,059,106,992.17
  5. Step 5: Solve for x
    x = 246,059,106,992.17/568,363.12
  6. Step 6: Final answer
    x = 432,925.89

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Double scale
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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.