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Finding the Fourth Proportional to 707,049.03, 975,748.02 and 384,779.55

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Solution

The fourth proportional to 707,049.03, 975,748.02 and 384,779.55 is: 531,006.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,049.03 : 975,748.02 = 384,779.55 : x
  2. Step 2: Convert to fraction form
    707,049.03/975,748.02 = 384,779.55/x
  3. Step 3: Cross multiply
    707,049.03x = 975,748.02 × 384,779.55
  4. Step 4: Simplify right side
    707,049.03x = 375,447,884,048.99
  5. Step 5: Solve for x
    x = 375,447,884,048.99/707,049.03
  6. Step 6: Final answer
    x = 531,006.86

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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.