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Finding the Fourth Proportional to 2,936,482.40, 4,403,411.40 and 1,138,768.40

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Solution

The fourth proportional to 2,936,482.40, 4,403,411.40 and 1,138,768.40 is: 1,707,643.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,936,482.40 : 4,403,411.40 = 1,138,768.40 : x
  2. Step 2: Convert to fraction form
    2,936,482.40/4,403,411.40 = 1,138,768.40/x
  3. Step 3: Cross multiply
    2,936,482.40x = 4,403,411.40 × 1,138,768.40
  4. Step 4: Simplify right side
    2,936,482.40x = 5,014,465,754,519.76
  5. Step 5: Solve for x
    x = 5,014,465,754,519.76/2,936,482.40
  6. Step 6: Final answer
    x = 1,707,643.73

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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.