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Finding the Fourth Proportional to 416,315.16, 574,516.32 and 225,328.44

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Solution

The fourth proportional to 416,315.16, 574,516.32 and 225,328.44 is: 310,954.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,315.16 : 574,516.32 = 225,328.44 : x
  2. Step 2: Convert to fraction form
    416,315.16/574,516.32 = 225,328.44/x
  3. Step 3: Cross multiply
    416,315.16x = 574,516.32 × 225,328.44
  4. Step 4: Simplify right side
    416,315.16x = 129,454,866,140.14
  5. Step 5: Solve for x
    x = 129,454,866,140.14/416,315.16
  6. Step 6: Final answer
    x = 310,954.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.