Home / 912,917.40-1,369,376.10-238,997.40

Finding the Fourth Proportional to 912,917.40, 1,369,376.10 and 238,997.40

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Solution

The fourth proportional to 912,917.40, 1,369,376.10 and 238,997.40 is: 358,496.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,917.40 : 1,369,376.10 = 238,997.40 : x
  2. Step 2: Convert to fraction form
    912,917.40/1,369,376.10 = 238,997.40/x
  3. Step 3: Cross multiply
    912,917.40x = 1,369,376.10 × 238,997.40
  4. Step 4: Simplify right side
    912,917.40x = 327,277,327,522.14
  5. Step 5: Solve for x
    x = 327,277,327,522.14/912,917.40
  6. Step 6: Final answer
    x = 358,496.10

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Half scale
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Double scale
Find fourth proportional to 912,918.40, 1,369,377.60 and 238,998.40
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.