Home / 489,938.10-734,621.10-190,068.30

Finding the Fourth Proportional to 489,938.10, 734,621.10 and 190,068.30

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Solution

The fourth proportional to 489,938.10, 734,621.10 and 190,068.30 is: 284,991.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,938.10 : 734,621.10 = 190,068.30 : x
  2. Step 2: Convert to fraction form
    489,938.10/734,621.10 = 190,068.30/x
  3. Step 3: Cross multiply
    489,938.10x = 734,621.10 × 190,068.30
  4. Step 4: Simplify right side
    489,938.10x = 139,628,183,621.13
  5. Step 5: Solve for x
    x = 139,628,183,621.13/489,938.10
  6. Step 6: Final answer
    x = 284,991.48

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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.