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Finding the Fourth Proportional to 460,198.10, 690,395.71 and 260,612.82

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Solution

The fourth proportional to 460,198.10, 690,395.71 and 260,612.82 is: 390,975.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,198.10 : 690,395.71 = 260,612.82 : x
  2. Step 2: Convert to fraction form
    460,198.10/690,395.71 = 260,612.82/x
  3. Step 3: Cross multiply
    460,198.10x = 690,395.71 × 260,612.82
  4. Step 4: Simplify right side
    460,198.10x = 179,925,972,899.00
  5. Step 5: Solve for x
    x = 179,925,972,899.00/460,198.10
  6. Step 6: Final answer
    x = 390,975.05

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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.