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Finding the Fourth Proportional to 570,596.38, 787,413.37 and 315,942.10

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Solution

The fourth proportional to 570,596.38, 787,413.37 and 315,942.10 is: 435,994.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,596.38 : 787,413.37 = 315,942.10 : x
  2. Step 2: Convert to fraction form
    570,596.38/787,413.37 = 315,942.10/x
  3. Step 3: Cross multiply
    570,596.38x = 787,413.37 × 315,942.10
  4. Step 4: Simplify right side
    570,596.38x = 248,777,033,685.88
  5. Step 5: Solve for x
    x = 248,777,033,685.88/570,596.38
  6. Step 6: Final answer
    x = 435,994.76

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1.5x scale

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.