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Finding the Fourth Proportional to 706,157.40, 974,490.29 and 383,848.32

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Solution

The fourth proportional to 706,157.40, 974,490.29 and 383,848.32 is: 529,706.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,157.40 : 974,490.29 = 383,848.32 : x
  2. Step 2: Convert to fraction form
    706,157.40/974,490.29 = 383,848.32/x
  3. Step 3: Cross multiply
    706,157.40x = 974,490.29 × 383,848.32
  4. Step 4: Simplify right side
    706,157.40x = 374,056,465,286.77
  5. Step 5: Solve for x
    x = 374,056,465,286.77/706,157.40
  6. Step 6: Final answer
    x = 529,706.92

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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.