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Finding the Fourth Proportional to 1,042,931.20, 1,462,203.20 and 1,042,931.20

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Solution

The fourth proportional to 1,042,931.20, 1,462,203.20 and 1,042,931.20 is: 1,462,203.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,931.20 : 1,462,203.20 = 1,042,931.20 : x
  2. Step 2: Convert to fraction form
    1,042,931.20/1,462,203.20 = 1,042,931.20/x
  3. Step 3: Cross multiply
    1,042,931.20x = 1,462,203.20 × 1,042,931.20
  4. Step 4: Simplify right side
    1,042,931.20x = 1,524,977,338,019.84
  5. Step 5: Solve for x
    x = 1,524,977,338,019.84/1,042,931.20
  6. Step 6: Final answer
    x = 1,462,203.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.