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Finding the Fourth Proportional to 568,465.38, 784,484.74 and 313,818.66

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Solution

The fourth proportional to 568,465.38, 784,484.74 and 313,818.66 is: 433,071.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,465.38 : 784,484.74 = 313,818.66 : x
  2. Step 2: Convert to fraction form
    568,465.38/784,484.74 = 313,818.66/x
  3. Step 3: Cross multiply
    568,465.38x = 784,484.74 × 313,818.66
  4. Step 4: Simplify right side
    568,465.38x = 246,185,949,897.25
  5. Step 5: Solve for x
    x = 246,185,949,897.25/568,465.38
  6. Step 6: Final answer
    x = 433,071.14

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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.