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Finding the Fourth Proportional to 616,605.75, 925,277.64 and 217,582.06

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Solution

The fourth proportional to 616,605.75, 925,277.64 and 217,582.06 is: 326,503.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,605.75 : 925,277.64 = 217,582.06 : x
  2. Step 2: Convert to fraction form
    616,605.75/925,277.64 = 217,582.06/x
  3. Step 3: Cross multiply
    616,605.75x = 925,277.64 × 217,582.06
  4. Step 4: Simplify right side
    616,605.75x = 201,323,814,983.14
  5. Step 5: Solve for x
    x = 201,323,814,983.14/616,605.75
  6. Step 6: Final answer
    x = 326,503.31

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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.