Home / 1,276,816.80-1,915,069.14-330,108.24

Finding the Fourth Proportional to 1,276,816.80, 1,915,069.14 and 330,108.24

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Solution

The fourth proportional to 1,276,816.80, 1,915,069.14 and 330,108.24 is: 495,122.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,816.80 : 1,915,069.14 = 330,108.24 : x
  2. Step 2: Convert to fraction form
    1,276,816.80/1,915,069.14 = 330,108.24/x
  3. Step 3: Cross multiply
    1,276,816.80x = 1,915,069.14 × 330,108.24
  4. Step 4: Simplify right side
    1,276,816.80x = 632,180,103,283.71
  5. Step 5: Solve for x
    x = 632,180,103,283.71/1,276,816.80
  6. Step 6: Final answer
    x = 495,122.01

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Double scale
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1.5x scale

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.