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Finding the Fourth Proportional to 458,442.40, 632,618.80 and 254,477.28

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Solution

The fourth proportional to 458,442.40, 632,618.80 and 254,477.28 is: 351,161.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,442.40 : 632,618.80 = 254,477.28 : x
  2. Step 2: Convert to fraction form
    458,442.40/632,618.80 = 254,477.28/x
  3. Step 3: Cross multiply
    458,442.40x = 632,618.80 × 254,477.28
  4. Step 4: Simplify right side
    458,442.40x = 160,987,111,500.86
  5. Step 5: Solve for x
    x = 160,987,111,500.86/458,442.40
  6. Step 6: Final answer
    x = 351,161.04

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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.