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Finding the Fourth Proportional to 640,016.64, 960,024.65 and 190,726.04

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Solution

The fourth proportional to 640,016.64, 960,024.65 and 190,726.04 is: 286,088.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,016.64 : 960,024.65 = 190,726.04 : x
  2. Step 2: Convert to fraction form
    640,016.64/960,024.65 = 190,726.04/x
  3. Step 3: Cross multiply
    640,016.64x = 960,024.65 × 190,726.04
  4. Step 4: Simplify right side
    640,016.64x = 183,101,698,843.26
  5. Step 5: Solve for x
    x = 183,101,698,843.26/640,016.64
  6. Step 6: Final answer
    x = 286,088.97

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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.