Home / 734,756.86-1,013,998.07-408,071.15

Finding the Fourth Proportional to 734,756.86, 1,013,998.07 and 408,071.15

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Solution

The fourth proportional to 734,756.86, 1,013,998.07 and 408,071.15 is: 563,156.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,756.86 : 1,013,998.07 = 408,071.15 : x
  2. Step 2: Convert to fraction form
    734,756.86/1,013,998.07 = 408,071.15/x
  3. Step 3: Cross multiply
    734,756.86x = 1,013,998.07 × 408,071.15
  4. Step 4: Simplify right side
    734,756.86x = 413,783,358,522.68
  5. Step 5: Solve for x
    x = 413,783,358,522.68/734,756.86
  6. Step 6: Final answer
    x = 563,156.85

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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.