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Finding the Fourth Proportional to 1,958,851.76, 2,931,978.84 and 1,010,931.44

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Solution

The fourth proportional to 1,958,851.76, 2,931,978.84 and 1,010,931.44 is: 1,513,146.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,958,851.76 : 2,931,978.84 = 1,010,931.44 : x
  2. Step 2: Convert to fraction form
    1,958,851.76/2,931,978.84 = 1,010,931.44/x
  3. Step 3: Cross multiply
    1,958,851.76x = 2,931,978.84 × 1,010,931.44
  4. Step 4: Simplify right side
    1,958,851.76x = 2,964,029,590,770.73
  5. Step 5: Solve for x
    x = 2,964,029,590,770.73/1,958,851.76
  6. Step 6: Final answer
    x = 1,513,146.45

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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.