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Finding the Fourth Proportional to 605,010.30, 907,515.45 and 575,485.80

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Solution

The fourth proportional to 605,010.30, 907,515.45 and 575,485.80 is: 863,228.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,010.30 : 907,515.45 = 575,485.80 : x
  2. Step 2: Convert to fraction form
    605,010.30/907,515.45 = 575,485.80/x
  3. Step 3: Cross multiply
    605,010.30x = 907,515.45 × 575,485.80
  4. Step 4: Simplify right side
    605,010.30x = 522,262,254,755.61
  5. Step 5: Solve for x
    x = 522,262,254,755.61/605,010.30
  6. Step 6: Final answer
    x = 863,228.70

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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.