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Finding the Fourth Proportional to 472,402.94, 651,922.83 and 257,553.88

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Solution

The fourth proportional to 472,402.94, 651,922.83 and 257,553.88 is: 355,428.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,402.94 : 651,922.83 = 257,553.88 : x
  2. Step 2: Convert to fraction form
    472,402.94/651,922.83 = 257,553.88/x
  3. Step 3: Cross multiply
    472,402.94x = 651,922.83 × 257,553.88
  4. Step 4: Simplify right side
    472,402.94x = 167,905,252,697.27
  5. Step 5: Solve for x
    x = 167,905,252,697.27/472,402.94
  6. Step 6: Final answer
    x = 355,428.05

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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.