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Finding the Fourth Proportional to 404,790.36, 607,079.43 and 120,404.22

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Solution

The fourth proportional to 404,790.36, 607,079.43 and 120,404.22 is: 180,574.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,790.36 : 607,079.43 = 120,404.22 : x
  2. Step 2: Convert to fraction form
    404,790.36/607,079.43 = 120,404.22/x
  3. Step 3: Cross multiply
    404,790.36x = 607,079.43 × 120,404.22
  4. Step 4: Simplify right side
    404,790.36x = 73,094,925,247.19
  5. Step 5: Solve for x
    x = 73,094,925,247.19/404,790.36
  6. Step 6: Final answer
    x = 180,574.77

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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.