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Finding the Fourth Proportional to 307,616.40, 461,168.60 and 130,259.60

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Solution

The fourth proportional to 307,616.40, 461,168.60 and 130,259.60 is: 195,281.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,616.40 : 461,168.60 = 130,259.60 : x
  2. Step 2: Convert to fraction form
    307,616.40/461,168.60 = 130,259.60/x
  3. Step 3: Cross multiply
    307,616.40x = 461,168.60 × 130,259.60
  4. Step 4: Simplify right side
    307,616.40x = 60,071,637,368.56
  5. Step 5: Solve for x
    x = 60,071,637,368.56/307,616.40
  6. Step 6: Final answer
    x = 195,281.00

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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.