Home / 927,008.70-1,390,513.05-394,547.10

Finding the Fourth Proportional to 927,008.70, 1,390,513.05 and 394,547.10

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Solution

The fourth proportional to 927,008.70, 1,390,513.05 and 394,547.10 is: 591,820.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,008.70 : 1,390,513.05 = 394,547.10 : x
  2. Step 2: Convert to fraction form
    927,008.70/1,390,513.05 = 394,547.10/x
  3. Step 3: Cross multiply
    927,008.70x = 1,390,513.05 × 394,547.10
  4. Step 4: Simplify right side
    927,008.70x = 548,622,891,389.66
  5. Step 5: Solve for x
    x = 548,622,891,389.66/927,008.70
  6. Step 6: Final answer
    x = 591,820.65

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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.