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Finding the Fourth Proportional to 1,346,544, 1,858,230.72 and 742,932

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Solution

The fourth proportional to 1,346,544, 1,858,230.72 and 742,932 is: 1,025,246.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346,544 : 1,858,230.72 = 742,932 : x
  2. Step 2: Convert to fraction form
    1,346,544/1,858,230.72 = 742,932/x
  3. Step 3: Cross multiply
    1,346,544x = 1,858,230.72 × 742,932
  4. Step 4: Simplify right side
    1,346,544x = 1,380,539,065,271.04
  5. Step 5: Solve for x
    x = 1,380,539,065,271.04/1,346,544
  6. Step 6: Final answer
    x = 1,025,246.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.