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Finding the Fourth Proportional to 355,301.40, 532,779.30 and 197,362.20

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Solution

The fourth proportional to 355,301.40, 532,779.30 and 197,362.20 is: 295,947.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,301.40 : 532,779.30 = 197,362.20 : x
  2. Step 2: Convert to fraction form
    355,301.40/532,779.30 = 197,362.20/x
  3. Step 3: Cross multiply
    355,301.40x = 532,779.30 × 197,362.20
  4. Step 4: Simplify right side
    355,301.40x = 105,150,494,762.46
  5. Step 5: Solve for x
    x = 105,150,494,762.46/355,301.40
  6. Step 6: Final answer
    x = 295,947.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.