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Finding the Fourth Proportional to 648,196.20, 970,544.70 and 508,228.20

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Solution

The fourth proportional to 648,196.20, 970,544.70 and 508,228.20 is: 760,970.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,196.20 : 970,544.70 = 508,228.20 : x
  2. Step 2: Convert to fraction form
    648,196.20/970,544.70 = 508,228.20/x
  3. Step 3: Cross multiply
    648,196.20x = 970,544.70 × 508,228.20
  4. Step 4: Simplify right side
    648,196.20x = 493,258,185,900.54
  5. Step 5: Solve for x
    x = 493,258,185,900.54/648,196.20
  6. Step 6: Final answer
    x = 760,970.50

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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.