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Finding the Fourth Proportional to 1,107,345.90, 1,554,483.30 and 1,107,345.90

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Solution

The fourth proportional to 1,107,345.90, 1,554,483.30 and 1,107,345.90 is: 1,554,483.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,345.90 : 1,554,483.30 = 1,107,345.90 : x
  2. Step 2: Convert to fraction form
    1,107,345.90/1,554,483.30 = 1,107,345.90/x
  3. Step 3: Cross multiply
    1,107,345.90x = 1,554,483.30 × 1,107,345.90
  4. Step 4: Simplify right side
    1,107,345.90x = 1,721,350,708,873.47
  5. Step 5: Solve for x
    x = 1,721,350,708,873.47/1,107,345.90
  6. Step 6: Final answer
    x = 1,554,483.30

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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.