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Finding the Fourth Proportional to 806,705, 1,113,210.60 and 444,058.02

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Solution

The fourth proportional to 806,705, 1,113,210.60 and 444,058.02 is: 612,776.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,705 : 1,113,210.60 = 444,058.02 : x
  2. Step 2: Convert to fraction form
    806,705/1,113,210.60 = 444,058.02/x
  3. Step 3: Cross multiply
    806,705x = 1,113,210.60 × 444,058.02
  4. Step 4: Simplify right side
    806,705x = 494,330,094,879.01
  5. Step 5: Solve for x
    x = 494,330,094,879.01/806,705
  6. Step 6: Final answer
    x = 612,776.78

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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.