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Finding the Fourth Proportional to 464,607.60, 696,911.40 and 338,636.40

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Solution

The fourth proportional to 464,607.60, 696,911.40 and 338,636.40 is: 507,954.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,607.60 : 696,911.40 = 338,636.40 : x
  2. Step 2: Convert to fraction form
    464,607.60/696,911.40 = 338,636.40/x
  3. Step 3: Cross multiply
    464,607.60x = 696,911.40 × 338,636.40
  4. Step 4: Simplify right side
    464,607.60x = 235,999,567,614.96
  5. Step 5: Solve for x
    x = 235,999,567,614.96/464,607.60
  6. Step 6: Final answer
    x = 507,954.60

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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.