Home / 1,623,801-2,435,711.58-425,712.54

Finding the Fourth Proportional to 1,623,801, 2,435,711.58 and 425,712.54

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Solution

The fourth proportional to 1,623,801, 2,435,711.58 and 425,712.54 is: 638,571.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,623,801 : 2,435,711.58 = 425,712.54 : x
  2. Step 2: Convert to fraction form
    1,623,801/2,435,711.58 = 425,712.54/x
  3. Step 3: Cross multiply
    1,623,801x = 2,435,711.58 × 425,712.54
  4. Step 4: Simplify right side
    1,623,801x = 1,036,912,963,429.21
  5. Step 5: Solve for x
    x = 1,036,912,963,429.21/1,623,801
  6. Step 6: Final answer
    x = 638,571.45

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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.