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Finding the Fourth Proportional to 5,700,900.81, 7,867,345.34 and 3,122,415.50

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Solution

The fourth proportional to 5,700,900.81, 7,867,345.34 and 3,122,415.50 is: 4,308,989.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,700,900.81 : 7,867,345.34 = 3,122,415.50 : x
  2. Step 2: Convert to fraction form
    5,700,900.81/7,867,345.34 = 3,122,415.50/x
  3. Step 3: Cross multiply
    5,700,900.81x = 7,867,345.34 × 3,122,415.50
  4. Step 4: Simplify right side
    5,700,900.81x = 24,565,121,060,943.17
  5. Step 5: Solve for x
    x = 24,565,121,060,943.17/5,700,900.81
  6. Step 6: Final answer
    x = 4,308,989.38

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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.