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Finding the Fourth Proportional to 1,213,559, 1,674,712.16 and 677,015

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Solution

The fourth proportional to 1,213,559, 1,674,712.16 and 677,015 is: 934,281.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,559 : 1,674,712.16 = 677,015 : x
  2. Step 2: Convert to fraction form
    1,213,559/1,674,712.16 = 677,015/x
  3. Step 3: Cross multiply
    1,213,559x = 1,674,712.16 × 677,015
  4. Step 4: Simplify right side
    1,213,559x = 1,133,805,253,002.40
  5. Step 5: Solve for x
    x = 1,133,805,253,002.40/1,213,559
  6. Step 6: Final answer
    x = 934,281.11

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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.