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Finding the Fourth Proportional to 606,467.70, 909,701.55 and 207,012.15

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Solution

The fourth proportional to 606,467.70, 909,701.55 and 207,012.15 is: 310,518.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,467.70 : 909,701.55 = 207,012.15 : x
  2. Step 2: Convert to fraction form
    606,467.70/909,701.55 = 207,012.15/x
  3. Step 3: Cross multiply
    606,467.70x = 909,701.55 × 207,012.15
  4. Step 4: Simplify right side
    606,467.70x = 188,319,273,723.83
  5. Step 5: Solve for x
    x = 188,319,273,723.83/606,467.70
  6. Step 6: Final answer
    x = 310,518.23

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Double scale
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Similar ratio
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1.5x scale

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.