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Finding the Fourth Proportional to 307,851.90, 461,777.85 and 181,880.70

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Solution

The fourth proportional to 307,851.90, 461,777.85 and 181,880.70 is: 272,821.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,851.90 : 461,777.85 = 181,880.70 : x
  2. Step 2: Convert to fraction form
    307,851.90/461,777.85 = 181,880.70/x
  3. Step 3: Cross multiply
    307,851.90x = 461,777.85 × 181,880.70
  4. Step 4: Simplify right side
    307,851.90x = 83,988,478,602.50
  5. Step 5: Solve for x
    x = 83,988,478,602.50/307,851.90
  6. Step 6: Final answer
    x = 272,821.05

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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.