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Finding the Fourth Proportional to 1,351,877.22, 1,865,592.89 and 740,030.36

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Solution

The fourth proportional to 1,351,877.22, 1,865,592.89 and 740,030.36 is: 1,021,243.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351,877.22 : 1,865,592.89 = 740,030.36 : x
  2. Step 2: Convert to fraction form
    1,351,877.22/1,865,592.89 = 740,030.36/x
  3. Step 3: Cross multiply
    1,351,877.22x = 1,865,592.89 × 740,030.36
  4. Step 4: Simplify right side
    1,351,877.22x = 1,380,595,364,972.02
  5. Step 5: Solve for x
    x = 1,380,595,364,972.02/1,351,877.22
  6. Step 6: Final answer
    x = 1,021,243.16

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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.