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Finding the Fourth Proportional to 464,430.60, 696,645.90 and 148,919.40

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Solution

The fourth proportional to 464,430.60, 696,645.90 and 148,919.40 is: 223,379.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,430.60 : 696,645.90 = 148,919.40 : x
  2. Step 2: Convert to fraction form
    464,430.60/696,645.90 = 148,919.40/x
  3. Step 3: Cross multiply
    464,430.60x = 696,645.90 × 148,919.40
  4. Step 4: Simplify right side
    464,430.60x = 103,744,089,440.46
  5. Step 5: Solve for x
    x = 103,744,089,440.46/464,430.60
  6. Step 6: Final answer
    x = 223,379.10

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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.