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Finding the Fourth Proportional to 707,190.42, 975,909.15 and 384,907.62

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Solution

The fourth proportional to 707,190.42, 975,909.15 and 384,907.62 is: 531,165.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,190.42 : 975,909.15 = 384,907.62 : x
  2. Step 2: Convert to fraction form
    707,190.42/975,909.15 = 384,907.62/x
  3. Step 3: Cross multiply
    707,190.42x = 975,909.15 × 384,907.62
  4. Step 4: Simplify right side
    707,190.42x = 375,634,868,262.72
  5. Step 5: Solve for x
    x = 375,634,868,262.72/707,190.42
  6. Step 6: Final answer
    x = 531,165.10

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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.