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Finding the Fourth Proportional to 648,375.18, 972,609.47 and 249,015.95

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Solution

The fourth proportional to 648,375.18, 972,609.47 and 249,015.95 is: 373,541.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,375.18 : 972,609.47 = 249,015.95 : x
  2. Step 2: Convert to fraction form
    648,375.18/972,609.47 = 249,015.95/x
  3. Step 3: Cross multiply
    648,375.18x = 972,609.47 × 249,015.95
  4. Step 4: Simplify right side
    648,375.18x = 242,195,274,205.11
  5. Step 5: Solve for x
    x = 242,195,274,205.11/648,375.18
  6. Step 6: Final answer
    x = 373,541.87

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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.