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Finding the Fourth Proportional to 307,570.90, 461,485.95 and 167,430.10

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Solution

The fourth proportional to 307,570.90, 461,485.95 and 167,430.10 is: 251,215.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,570.90 : 461,485.95 = 167,430.10 : x
  2. Step 2: Convert to fraction form
    307,570.90/461,485.95 = 167,430.10/x
  3. Step 3: Cross multiply
    307,570.90x = 461,485.95 × 167,430.10
  4. Step 4: Simplify right side
    307,570.90x = 77,266,638,757.10
  5. Step 5: Solve for x
    x = 77,266,638,757.10/307,570.90
  6. Step 6: Final answer
    x = 251,215.70

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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.