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Finding the Fourth Proportional to 456,117.12, 629,442.48 and 254,913.12

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Solution

The fourth proportional to 456,117.12, 629,442.48 and 254,913.12 is: 351,780.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,117.12 : 629,442.48 = 254,913.12 : x
  2. Step 2: Convert to fraction form
    456,117.12/629,442.48 = 254,913.12/x
  3. Step 3: Cross multiply
    456,117.12x = 629,442.48 × 254,913.12
  4. Step 4: Simplify right side
    456,117.12x = 160,453,146,437.34
  5. Step 5: Solve for x
    x = 160,453,146,437.34/456,117.12
  6. Step 6: Final answer
    x = 351,780.58

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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.