Home / 476,632.49-715,047.21-139,684.16

Finding the Fourth Proportional to 476,632.49, 715,047.21 and 139,684.16

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Solution

The fourth proportional to 476,632.49, 715,047.21 and 139,684.16 is: 209,555.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,632.49 : 715,047.21 = 139,684.16 : x
  2. Step 2: Convert to fraction form
    476,632.49/715,047.21 = 139,684.16/x
  3. Step 3: Cross multiply
    476,632.49x = 715,047.21 × 139,684.16
  4. Step 4: Simplify right side
    476,632.49x = 99,880,770,676.81
  5. Step 5: Solve for x
    x = 99,880,770,676.81/476,632.49
  6. Step 6: Final answer
    x = 209,555.11

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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.