Home / 1,276,384.20-1,914,446.70-434,923.80

Finding the Fourth Proportional to 1,276,384.20, 1,914,446.70 and 434,923.80

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Solution

The fourth proportional to 1,276,384.20, 1,914,446.70 and 434,923.80 is: 652,341.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,384.20 : 1,914,446.70 = 434,923.80 : x
  2. Step 2: Convert to fraction form
    1,276,384.20/1,914,446.70 = 434,923.80/x
  3. Step 3: Cross multiply
    1,276,384.20x = 1,914,446.70 × 434,923.80
  4. Step 4: Simplify right side
    1,276,384.20x = 832,638,433,661.46
  5. Step 5: Solve for x
    x = 832,638,433,661.46/1,276,384.20
  6. Step 6: Final answer
    x = 652,341.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.