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Finding the Fourth Proportional to 472,431.96, 651,959.92 and 257,573.58

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Solution

The fourth proportional to 472,431.96, 651,959.92 and 257,573.58 is: 355,453.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,431.96 : 651,959.92 = 257,573.58 : x
  2. Step 2: Convert to fraction form
    472,431.96/651,959.92 = 257,573.58/x
  3. Step 3: Cross multiply
    472,431.96x = 651,959.92 × 257,573.58
  4. Step 4: Simplify right side
    472,431.96x = 167,927,650,610.91
  5. Step 5: Solve for x
    x = 167,927,650,610.91/472,431.96
  6. Step 6: Final answer
    x = 355,453.62

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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.