Home / 648,190.20-973,160.10-515,220.60

Finding the Fourth Proportional to 648,190.20, 973,160.10 and 515,220.60

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Solution

The fourth proportional to 648,190.20, 973,160.10 and 515,220.60 is: 773,526.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,190.20 : 973,160.10 = 515,220.60 : x
  2. Step 2: Convert to fraction form
    648,190.20/973,160.10 = 515,220.60/x
  3. Step 3: Cross multiply
    648,190.20x = 973,160.10 × 515,220.60
  4. Step 4: Simplify right side
    648,190.20x = 501,392,130,618.06
  5. Step 5: Solve for x
    x = 501,392,130,618.06/648,190.20
  6. Step 6: Final answer
    x = 773,526.24

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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.