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Finding the Fourth Proportional to 472,566,302.55, 708,849,453.83 and 408,865,310.55

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Solution

The fourth proportional to 472,566,302.55, 708,849,453.83 and 408,865,310.55 is: 613,297,965.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,566,302.55 : 708,849,453.83 = 408,865,310.55 : x
  2. Step 2: Convert to fraction form
    472,566,302.55/708,849,453.83 = 408,865,310.55/x
  3. Step 3: Cross multiply
    472,566,302.55x = 708,849,453.83 × 408,865,310.55
  4. Step 4: Simplify right side
    472,566,302.55x = 289,823,952,071,356,544
  5. Step 5: Solve for x
    x = 289,823,952,071,356,544/472,566,302.55
  6. Step 6: Final answer
    x = 613,297,965.83

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Double scale
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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.