Home / 1,678,363.40-2,316,168.06-914,416.76

Finding the Fourth Proportional to 1,678,363.40, 2,316,168.06 and 914,416.76

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Solution

The fourth proportional to 1,678,363.40, 2,316,168.06 and 914,416.76 is: 1,261,909.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,363.40 : 2,316,168.06 = 914,416.76 : x
  2. Step 2: Convert to fraction form
    1,678,363.40/2,316,168.06 = 914,416.76/x
  3. Step 3: Cross multiply
    1,678,363.40x = 2,316,168.06 × 914,416.76
  4. Step 4: Simplify right side
    1,678,363.40x = 2,117,942,893,040.69
  5. Step 5: Solve for x
    x = 2,117,942,893,040.69/1,678,363.40
  6. Step 6: Final answer
    x = 1,261,909.60

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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.