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Finding the Fourth Proportional to 606,979.40, 910,469.10 and 292,051.40

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Solution

The fourth proportional to 606,979.40, 910,469.10 and 292,051.40 is: 438,077.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,979.40 : 910,469.10 = 292,051.40 : x
  2. Step 2: Convert to fraction form
    606,979.40/910,469.10 = 292,051.40/x
  3. Step 3: Cross multiply
    606,979.40x = 910,469.10 × 292,051.40
  4. Step 4: Simplify right side
    606,979.40x = 265,903,775,311.74
  5. Step 5: Solve for x
    x = 265,903,775,311.74/606,979.40
  6. Step 6: Final answer
    x = 438,077.10

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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.