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Finding the Fourth Proportional to 620,750.32, 856,607.85 and 362,651.20

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Solution

The fourth proportional to 620,750.32, 856,607.85 and 362,651.20 is: 500,442.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,750.32 : 856,607.85 = 362,651.20 : x
  2. Step 2: Convert to fraction form
    620,750.32/856,607.85 = 362,651.20/x
  3. Step 3: Cross multiply
    620,750.32x = 856,607.85 × 362,651.20
  4. Step 4: Simplify right side
    620,750.32x = 310,649,864,731.92
  5. Step 5: Solve for x
    x = 310,649,864,731.92/620,750.32
  6. Step 6: Final answer
    x = 500,442.54

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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.