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Finding the Fourth Proportional to 606,971.60, 910,821.90 and 251,948.60

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Solution

The fourth proportional to 606,971.60, 910,821.90 and 251,948.60 is: 378,074.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,971.60 : 910,821.90 = 251,948.60 : x
  2. Step 2: Convert to fraction form
    606,971.60/910,821.90 = 251,948.60/x
  3. Step 3: Cross multiply
    606,971.60x = 910,821.90 × 251,948.60
  4. Step 4: Simplify right side
    606,971.60x = 229,480,302,554.34
  5. Step 5: Solve for x
    x = 229,480,302,554.34/606,971.60
  6. Step 6: Final answer
    x = 378,074.20

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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.