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Finding the Fourth Proportional to 404,677.50, 607,015.80 and 120,366.90

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Solution

The fourth proportional to 404,677.50, 607,015.80 and 120,366.90 is: 180,550.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,677.50 : 607,015.80 = 120,366.90 : x
  2. Step 2: Convert to fraction form
    404,677.50/607,015.80 = 120,366.90/x
  3. Step 3: Cross multiply
    404,677.50x = 607,015.80 × 120,366.90
  4. Step 4: Simplify right side
    404,677.50x = 73,064,610,097.02
  5. Step 5: Solve for x
    x = 73,064,610,097.02/404,677.50
  6. Step 6: Final answer
    x = 180,550.22

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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.