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Finding the Fourth Proportional to 605,260.20, 907,890.30 and 510,781.80

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Solution

The fourth proportional to 605,260.20, 907,890.30 and 510,781.80 is: 766,172.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,260.20 : 907,890.30 = 510,781.80 : x
  2. Step 2: Convert to fraction form
    605,260.20/907,890.30 = 510,781.80/x
  3. Step 3: Cross multiply
    605,260.20x = 907,890.30 × 510,781.80
  4. Step 4: Simplify right side
    605,260.20x = 463,733,841,636.54
  5. Step 5: Solve for x
    x = 463,733,841,636.54/605,260.20
  6. Step 6: Final answer
    x = 766,172.70

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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.