Home / 649,389.60-895,577.40-407,694.69

Finding the Fourth Proportional to 649,389.60, 895,577.40 and 407,694.69

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Solution

The fourth proportional to 649,389.60, 895,577.40 and 407,694.69 is: 562,254.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,389.60 : 895,577.40 = 407,694.69 : x
  2. Step 2: Convert to fraction form
    649,389.60/895,577.40 = 407,694.69/x
  3. Step 3: Cross multiply
    649,389.60x = 895,577.40 × 407,694.69
  4. Step 4: Simplify right side
    649,389.60x = 365,122,150,464.01
  5. Step 5: Solve for x
    x = 365,122,150,464.01/649,389.60
  6. Step 6: Final answer
    x = 562,254.39

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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.