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Finding the Fourth Proportional to 706,909.41, 975,539.21 and 384,621.93

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Solution

The fourth proportional to 706,909.41, 975,539.21 and 384,621.93 is: 530,780.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,909.41 : 975,539.21 = 384,621.93 : x
  2. Step 2: Convert to fraction form
    706,909.41/975,539.21 = 384,621.93/x
  3. Step 3: Cross multiply
    706,909.41x = 975,539.21 × 384,621.93
  4. Step 4: Simplify right side
    706,909.41x = 375,213,771,817.77
  5. Step 5: Solve for x
    x = 375,213,771,817.77/706,909.41
  6. Step 6: Final answer
    x = 530,780.56

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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.