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Finding the Fourth Proportional to 317,280.16, 475,683.52 and 190,890.79

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Solution

The fourth proportional to 317,280.16, 475,683.52 and 190,890.79 is: 286,193.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,280.16 : 475,683.52 = 190,890.79 : x
  2. Step 2: Convert to fraction form
    317,280.16/475,683.52 = 190,890.79/x
  3. Step 3: Cross multiply
    317,280.16x = 475,683.52 × 190,890.79
  4. Step 4: Simplify right side
    317,280.16x = 90,803,599,589.91
  5. Step 5: Solve for x
    x = 90,803,599,589.91/317,280.16
  6. Step 6: Final answer
    x = 286,193.76

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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.