Home / 936,840.30-1,405,916.55-404,743.20

Finding the Fourth Proportional to 936,840.30, 1,405,916.55 and 404,743.20

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Solution

The fourth proportional to 936,840.30, 1,405,916.55 and 404,743.20 is: 607,398.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,840.30 : 1,405,916.55 = 404,743.20 : x
  2. Step 2: Convert to fraction form
    936,840.30/1,405,916.55 = 404,743.20/x
  3. Step 3: Cross multiply
    936,840.30x = 1,405,916.55 × 404,743.20
  4. Step 4: Simplify right side
    936,840.30x = 569,035,163,379.96
  5. Step 5: Solve for x
    x = 569,035,163,379.96/936,840.30
  6. Step 6: Final answer
    x = 607,398.25

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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.