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Finding the Fourth Proportional to 1,361,111, 1,878,357.07 and 740,934

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Solution

The fourth proportional to 1,361,111, 1,878,357.07 and 740,934 is: 1,022,501.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,111 : 1,878,357.07 = 740,934 : x
  2. Step 2: Convert to fraction form
    1,361,111/1,878,357.07 = 740,934/x
  3. Step 3: Cross multiply
    1,361,111x = 1,878,357.07 × 740,934
  4. Step 4: Simplify right side
    1,361,111x = 1,391,738,617,303.38
  5. Step 5: Solve for x
    x = 1,391,738,617,303.38/1,361,111
  6. Step 6: Final answer
    x = 1,022,501.92

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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.