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Finding the Fourth Proportional to 612,130.60, 844,498.34 and 353,960.04

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Solution

The fourth proportional to 612,130.60, 844,498.34 and 353,960.04 is: 488,324.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,130.60 : 844,498.34 = 353,960.04 : x
  2. Step 2: Convert to fraction form
    612,130.60/844,498.34 = 353,960.04/x
  3. Step 3: Cross multiply
    612,130.60x = 844,498.34 × 353,960.04
  4. Step 4: Simplify right side
    612,130.60x = 298,918,666,206.33
  5. Step 5: Solve for x
    x = 298,918,666,206.33/612,130.60
  6. Step 6: Final answer
    x = 488,324.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.