Home / 644,784.04-889,795.56-358,298.11

Finding the Fourth Proportional to 644,784.04, 889,795.56 and 358,298.11

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Solution

The fourth proportional to 644,784.04, 889,795.56 and 358,298.11 is: 494,447.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,784.04 : 889,795.56 = 358,298.11 : x
  2. Step 2: Convert to fraction form
    644,784.04/889,795.56 = 358,298.11/x
  3. Step 3: Cross multiply
    644,784.04x = 889,795.56 × 358,298.11
  4. Step 4: Simplify right side
    644,784.04x = 318,812,067,434.39
  5. Step 5: Solve for x
    x = 318,812,067,434.39/644,784.04
  6. Step 6: Final answer
    x = 494,447.83

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Similar ratio
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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.