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Finding the Fourth Proportional to 590,419.20, 885,513.60 and 190,963.20

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Solution

The fourth proportional to 590,419.20, 885,513.60 and 190,963.20 is: 286,407.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,419.20 : 885,513.60 = 190,963.20 : x
  2. Step 2: Convert to fraction form
    590,419.20/885,513.60 = 190,963.20/x
  3. Step 3: Cross multiply
    590,419.20x = 885,513.60 × 190,963.20
  4. Step 4: Simplify right side
    590,419.20x = 169,100,510,699.52
  5. Step 5: Solve for x
    x = 169,100,510,699.52/590,419.20
  6. Step 6: Final answer
    x = 286,407.54

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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.