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Finding the Fourth Proportional to 978,192.63, 1,349,919.60 and 590,954.22

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Solution

The fourth proportional to 978,192.63, 1,349,919.60 and 590,954.22 is: 815,525.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,192.63 : 1,349,919.60 = 590,954.22 : x
  2. Step 2: Convert to fraction form
    978,192.63/1,349,919.60 = 590,954.22/x
  3. Step 3: Cross multiply
    978,192.63x = 1,349,919.60 × 590,954.22
  4. Step 4: Simplify right side
    978,192.63x = 797,740,684,280.71
  5. Step 5: Solve for x
    x = 797,740,684,280.71/978,192.63
  6. Step 6: Final answer
    x = 815,525.14

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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.