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Finding the Fourth Proportional to 707,043.55, 975,740.61 and 384,774.43

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Solution

The fourth proportional to 707,043.55, 975,740.61 and 384,774.43 is: 530,999.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,043.55 : 975,740.61 = 384,774.43 : x
  2. Step 2: Convert to fraction form
    707,043.55/975,740.61 = 384,774.43/x
  3. Step 3: Cross multiply
    707,043.55x = 975,740.61 × 384,774.43
  4. Step 4: Simplify right side
    707,043.55x = 375,440,037,040.60
  5. Step 5: Solve for x
    x = 375,440,037,040.60/707,043.55
  6. Step 6: Final answer
    x = 530,999.88

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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.