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Finding the Fourth Proportional to 624,928.86, 862,417.80 and 383,344.74

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Solution

The fourth proportional to 624,928.86, 862,417.80 and 383,344.74 is: 529,025.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,928.86 : 862,417.80 = 383,344.74 : x
  2. Step 2: Convert to fraction form
    624,928.86/862,417.80 = 383,344.74/x
  3. Step 3: Cross multiply
    624,928.86x = 862,417.80 × 383,344.74
  4. Step 4: Simplify right side
    624,928.86x = 330,603,327,312.37
  5. Step 5: Solve for x
    x = 330,603,327,312.37/624,928.86
  6. Step 6: Final answer
    x = 529,025.54

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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.