Home / 649,380.10-895,564.29-407,685.19

Finding the Fourth Proportional to 649,380.10, 895,564.29 and 407,685.19

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Solution

The fourth proportional to 649,380.10, 895,564.29 and 407,685.19 is: 562,241.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,380.10 : 895,564.29 = 407,685.19 : x
  2. Step 2: Convert to fraction form
    649,380.10/895,564.29 = 407,685.19/x
  3. Step 3: Cross multiply
    649,380.10x = 895,564.29 × 407,685.19
  4. Step 4: Simplify right side
    649,380.10x = 365,108,297,725.87
  5. Step 5: Solve for x
    x = 365,108,297,725.87/649,380.10
  6. Step 6: Final answer
    x = 562,241.28

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Half scale
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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.