Home / 489,938.07-734,621.10-190,068.27

Finding the Fourth Proportional to 489,938.07, 734,621.10 and 190,068.27

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Solution

The fourth proportional to 489,938.07, 734,621.10 and 190,068.27 is: 284,991.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,938.07 : 734,621.10 = 190,068.27 : x
  2. Step 2: Convert to fraction form
    489,938.07/734,621.10 = 190,068.27/x
  3. Step 3: Cross multiply
    489,938.07x = 734,621.10 × 190,068.27
  4. Step 4: Simplify right side
    489,938.07x = 139,628,161,582.50
  5. Step 5: Solve for x
    x = 139,628,161,582.50/489,938.07
  6. Step 6: Final answer
    x = 284,991.45

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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.