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Finding the Fourth Proportional to 569,787.68, 786,219.72 and 328,023.54

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Solution

The fourth proportional to 569,787.68, 786,219.72 and 328,023.54 is: 452,622.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,787.68 : 786,219.72 = 328,023.54 : x
  2. Step 2: Convert to fraction form
    569,787.68/786,219.72 = 328,023.54/x
  3. Step 3: Cross multiply
    569,787.68x = 786,219.72 × 328,023.54
  4. Step 4: Simplify right side
    569,787.68x = 257,898,575,772.21
  5. Step 5: Solve for x
    x = 257,898,575,772.21/569,787.68
  6. Step 6: Final answer
    x = 452,622.24

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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.