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Finding the Fourth Proportional to 673,413.60, 929,316.20 and 367,492.40

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Solution

The fourth proportional to 673,413.60, 929,316.20 and 367,492.40 is: 507,142.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,413.60 : 929,316.20 = 367,492.40 : x
  2. Step 2: Convert to fraction form
    673,413.60/929,316.20 = 367,492.40/x
  3. Step 3: Cross multiply
    673,413.60x = 929,316.20 × 367,492.40
  4. Step 4: Simplify right side
    673,413.60x = 341,516,640,696.88
  5. Step 5: Solve for x
    x = 341,516,640,696.88/673,413.60
  6. Step 6: Final answer
    x = 507,142.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.