Home / 719,450.86-992,860.24-409,336.35

Finding the Fourth Proportional to 719,450.86, 992,860.24 and 409,336.35

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Solution

The fourth proportional to 719,450.86, 992,860.24 and 409,336.35 is: 564,894.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,450.86 : 992,860.24 = 409,336.35 : x
  2. Step 2: Convert to fraction form
    719,450.86/992,860.24 = 409,336.35/x
  3. Step 3: Cross multiply
    719,450.86x = 992,860.24 × 409,336.35
  4. Step 4: Simplify right side
    719,450.86x = 406,413,786,701.72
  5. Step 5: Solve for x
    x = 406,413,786,701.72/719,450.86
  6. Step 6: Final answer
    x = 564,894.43

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Double scale
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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.