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Finding the Fourth Proportional to 464,430.40, 696,645.60 and 148,919.20

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Solution

The fourth proportional to 464,430.40, 696,645.60 and 148,919.20 is: 223,378.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,430.40 : 696,645.60 = 148,919.20 : x
  2. Step 2: Convert to fraction form
    464,430.40/696,645.60 = 148,919.20/x
  3. Step 3: Cross multiply
    464,430.40x = 696,645.60 × 148,919.20
  4. Step 4: Simplify right side
    464,430.40x = 103,743,905,435.52
  5. Step 5: Solve for x
    x = 103,743,905,435.52/464,430.40
  6. Step 6: Final answer
    x = 223,378.80

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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.