Home / 644,552.53-889,171.49-429,417.34

Finding the Fourth Proportional to 644,552.53, 889,171.49 and 429,417.34

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Solution

The fourth proportional to 644,552.53, 889,171.49 and 429,417.34 is: 592,388.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,552.53 : 889,171.49 = 429,417.34 : x
  2. Step 2: Convert to fraction form
    644,552.53/889,171.49 = 429,417.34/x
  3. Step 3: Cross multiply
    644,552.53x = 889,171.49 × 429,417.34
  4. Step 4: Simplify right side
    644,552.53x = 381,825,651,828.25
  5. Step 5: Solve for x
    x = 381,825,651,828.25/644,552.53
  6. Step 6: Final answer
    x = 592,388.73

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Double scale
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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.