Home / 644,815.14-888,907.05-450,619.93

Finding the Fourth Proportional to 644,815.14, 888,907.05 and 450,619.93

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Solution

The fourth proportional to 644,815.14, 888,907.05 and 450,619.93 is: 621,200.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,815.14 : 888,907.05 = 450,619.93 : x
  2. Step 2: Convert to fraction form
    644,815.14/888,907.05 = 450,619.93/x
  3. Step 3: Cross multiply
    644,815.14x = 888,907.05 × 450,619.93
  4. Step 4: Simplify right side
    644,815.14x = 400,559,230,425.24
  5. Step 5: Solve for x
    x = 400,559,230,425.24/644,815.14
  6. Step 6: Final answer
    x = 621,200.10

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1.5x scale

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.