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Finding the Fourth Proportional to 654,312.51, 903,639.60 and 582,987.60

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Solution

The fourth proportional to 654,312.51, 903,639.60 and 582,987.60 is: 805,136.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,312.51 : 903,639.60 = 582,987.60 : x
  2. Step 2: Convert to fraction form
    654,312.51/903,639.60 = 582,987.60/x
  3. Step 3: Cross multiply
    654,312.51x = 903,639.60 × 582,987.60
  4. Step 4: Simplify right side
    654,312.51x = 526,810,681,668.96
  5. Step 5: Solve for x
    x = 526,810,681,668.96/654,312.51
  6. Step 6: Final answer
    x = 805,136.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.