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Finding the Fourth Proportional to 1,194,701.06, 1,787,840.40 and 745,632.20

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Solution

The fourth proportional to 1,194,701.06, 1,787,840.40 and 745,632.20 is: 1,115,820.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194,701.06 : 1,787,840.40 = 745,632.20 : x
  2. Step 2: Convert to fraction form
    1,194,701.06/1,787,840.40 = 745,632.20/x
  3. Step 3: Cross multiply
    1,194,701.06x = 1,787,840.40 × 745,632.20
  4. Step 4: Simplify right side
    1,194,701.06x = 1,333,071,370,700.88
  5. Step 5: Solve for x
    x = 1,333,071,370,700.88/1,194,701.06
  6. Step 6: Final answer
    x = 1,115,820.03

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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.