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Finding the Fourth Proportional to 477,775.20, 716,619.60 and 162,242.40

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Solution

The fourth proportional to 477,775.20, 716,619.60 and 162,242.40 is: 243,348.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,775.20 : 716,619.60 = 162,242.40 : x
  2. Step 2: Convert to fraction form
    477,775.20/716,619.60 = 162,242.40/x
  3. Step 3: Cross multiply
    477,775.20x = 716,619.60 × 162,242.40
  4. Step 4: Simplify right side
    477,775.20x = 116,266,083,791.04
  5. Step 5: Solve for x
    x = 116,266,083,791.04/477,775.20
  6. Step 6: Final answer
    x = 243,348.93

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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.