Home / 649,378.42-895,561.92-407,683.53

Finding the Fourth Proportional to 649,378.42, 895,561.92 and 407,683.53

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Solution

The fourth proportional to 649,378.42, 895,561.92 and 407,683.53 is: 562,238.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,378.42 : 895,561.92 = 407,683.53 : x
  2. Step 2: Convert to fraction form
    649,378.42/895,561.92 = 407,683.53/x
  3. Step 3: Cross multiply
    649,378.42x = 895,561.92 × 407,683.53
  4. Step 4: Simplify right side
    649,378.42x = 365,105,844,879.18
  5. Step 5: Solve for x
    x = 365,105,844,879.18/649,378.42
  6. Step 6: Final answer
    x = 562,238.96

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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.