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Finding the Fourth Proportional to 786,072.51, 1,084,647.51 and 441,863.01

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Solution

The fourth proportional to 786,072.51, 1,084,647.51 and 441,863.01 is: 609,696.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,072.51 : 1,084,647.51 = 441,863.01 : x
  2. Step 2: Convert to fraction form
    786,072.51/1,084,647.51 = 441,863.01/x
  3. Step 3: Cross multiply
    786,072.51x = 1,084,647.51 × 441,863.01
  4. Step 4: Simplify right side
    786,072.51x = 479,265,613,557.61
  5. Step 5: Solve for x
    x = 479,265,613,557.61/786,072.51
  6. Step 6: Final answer
    x = 609,696.44

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1.5x scale

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.