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Finding the Fourth Proportional to 883,401.84, 1,219,460.76 and 668,601.84

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Solution

The fourth proportional to 883,401.84, 1,219,460.76 and 668,601.84 is: 922,947.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,401.84 : 1,219,460.76 = 668,601.84 : x
  2. Step 2: Convert to fraction form
    883,401.84/1,219,460.76 = 668,601.84/x
  3. Step 3: Cross multiply
    883,401.84x = 1,219,460.76 × 668,601.84
  4. Step 4: Simplify right side
    883,401.84x = 815,333,707,943.80
  5. Step 5: Solve for x
    x = 815,333,707,943.80/883,401.84
  6. Step 6: Final answer
    x = 922,947.71

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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.