Home / 1,091,771.56-1,637,657.34-426,457

Finding the Fourth Proportional to 1,091,771.56, 1,637,657.34 and 426,457

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Solution

The fourth proportional to 1,091,771.56, 1,637,657.34 and 426,457 is: 639,685.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,771.56 : 1,637,657.34 = 426,457 : x
  2. Step 2: Convert to fraction form
    1,091,771.56/1,637,657.34 = 426,457/x
  3. Step 3: Cross multiply
    1,091,771.56x = 1,637,657.34 × 426,457
  4. Step 4: Simplify right side
    1,091,771.56x = 698,390,436,244.38
  5. Step 5: Solve for x
    x = 698,390,436,244.38/1,091,771.56
  6. Step 6: Final answer
    x = 639,685.50

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.