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Finding the Fourth Proportional to 404,947.40, 607,421.10 and 183,331.40

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Solution

The fourth proportional to 404,947.40, 607,421.10 and 183,331.40 is: 274,997.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,947.40 : 607,421.10 = 183,331.40 : x
  2. Step 2: Convert to fraction form
    404,947.40/607,421.10 = 183,331.40/x
  3. Step 3: Cross multiply
    404,947.40x = 607,421.10 × 183,331.40
  4. Step 4: Simplify right side
    404,947.40x = 111,359,360,652.54
  5. Step 5: Solve for x
    x = 111,359,360,652.54/404,947.40
  6. Step 6: Final answer
    x = 274,997.10

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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.