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Finding the Fourth Proportional to 606,312,209.70, 909,468,314.55 and 330,813,195.30

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Solution

The fourth proportional to 606,312,209.70, 909,468,314.55 and 330,813,195.30 is: 496,219,792.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,312,209.70 : 909,468,314.55 = 330,813,195.30 : x
  2. Step 2: Convert to fraction form
    606,312,209.70/909,468,314.55 = 330,813,195.30/x
  3. Step 3: Cross multiply
    606,312,209.70x = 909,468,314.55 × 330,813,195.30
  4. Step 4: Simplify right side
    606,312,209.70x = 300,864,119,160,390,976
  5. Step 5: Solve for x
    x = 300,864,119,160,390,976/606,312,209.70
  6. Step 6: Final answer
    x = 496,219,792.95

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Double scale
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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.