Home / 1,239,042.40-1,858,563.71-440,355.46

Finding the Fourth Proportional to 1,239,042.40, 1,858,563.71 and 440,355.46

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Solution

The fourth proportional to 1,239,042.40, 1,858,563.71 and 440,355.46 is: 660,533.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,042.40 : 1,858,563.71 = 440,355.46 : x
  2. Step 2: Convert to fraction form
    1,239,042.40/1,858,563.71 = 440,355.46/x
  3. Step 3: Cross multiply
    1,239,042.40x = 1,858,563.71 × 440,355.46
  4. Step 4: Simplify right side
    1,239,042.40x = 818,428,677,456.36
  5. Step 5: Solve for x
    x = 818,428,677,456.36/1,239,042.40
  6. Step 6: Final answer
    x = 660,533.23

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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.