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Finding the Fourth Proportional to 404,573.40, 607,030.20 and 217,366.20

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Solution

The fourth proportional to 404,573.40, 607,030.20 and 217,366.20 is: 326,140.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,573.40 : 607,030.20 = 217,366.20 : x
  2. Step 2: Convert to fraction form
    404,573.40/607,030.20 = 217,366.20/x
  3. Step 3: Cross multiply
    404,573.40x = 607,030.20 × 217,366.20
  4. Step 4: Simplify right side
    404,573.40x = 131,947,847,859.24
  5. Step 5: Solve for x
    x = 131,947,847,859.24/404,573.40
  6. Step 6: Final answer
    x = 326,140.69

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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.