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Finding the Fourth Proportional to 472,566,601.80, 708,849,902.70 and 408,865,609.80

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Solution

The fourth proportional to 472,566,601.80, 708,849,902.70 and 408,865,609.80 is: 613,298,414.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,566,601.80 : 708,849,902.70 = 408,865,609.80 : x
  2. Step 2: Convert to fraction form
    472,566,601.80/708,849,902.70 = 408,865,609.80/x
  3. Step 3: Cross multiply
    472,566,601.80x = 708,849,902.70 × 408,865,609.80
  4. Step 4: Simplify right side
    472,566,601.80x = 289,824,347,724,106,176
  5. Step 5: Solve for x
    x = 289,824,347,724,106,176/472,566,601.80
  6. Step 6: Final answer
    x = 613,298,414.70

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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.