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Finding the Fourth Proportional to 606,947.70, 910,421.55 and 291,242.10

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Solution

The fourth proportional to 606,947.70, 910,421.55 and 291,242.10 is: 436,863.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,947.70 : 910,421.55 = 291,242.10 : x
  2. Step 2: Convert to fraction form
    606,947.70/910,421.55 = 291,242.10/x
  3. Step 3: Cross multiply
    606,947.70x = 910,421.55 × 291,242.10
  4. Step 4: Simplify right side
    606,947.70x = 265,153,084,107.26
  5. Step 5: Solve for x
    x = 265,153,084,107.26/606,947.70
  6. Step 6: Final answer
    x = 436,863.15

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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.