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Finding the Fourth Proportional to 677,447.28, 934,826.40 and 371,474.64

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Solution

The fourth proportional to 677,447.28, 934,826.40 and 371,474.64 is: 512,607.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,447.28 : 934,826.40 = 371,474.64 : x
  2. Step 2: Convert to fraction form
    677,447.28/934,826.40 = 371,474.64/x
  3. Step 3: Cross multiply
    677,447.28x = 934,826.40 × 371,474.64
  4. Step 4: Simplify right side
    677,447.28x = 347,264,300,402.50
  5. Step 5: Solve for x
    x = 347,264,300,402.50/677,447.28
  6. Step 6: Final answer
    x = 512,607.12

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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.