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Finding the Fourth Proportional to 4,692,332.89, 7,039,622.90 and 1,958,360.09

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Solution

The fourth proportional to 4,692,332.89, 7,039,622.90 and 1,958,360.09 is: 2,938,009.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,692,332.89 : 7,039,622.90 = 1,958,360.09 : x
  2. Step 2: Convert to fraction form
    4,692,332.89/7,039,622.90 = 1,958,360.09/x
  3. Step 3: Cross multiply
    4,692,332.89x = 7,039,622.90 × 1,958,360.09
  4. Step 4: Simplify right side
    4,692,332.89x = 13,786,116,500,199.37
  5. Step 5: Solve for x
    x = 13,786,116,500,199.37/4,692,332.89
  6. Step 6: Final answer
    x = 2,938,009.05

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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.