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Finding the Fourth Proportional to 668,674.50, 922,077.03 and 572,197.60

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Solution

The fourth proportional to 668,674.50, 922,077.03 and 572,197.60 is: 789,039.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,674.50 : 922,077.03 = 572,197.60 : x
  2. Step 2: Convert to fraction form
    668,674.50/922,077.03 = 572,197.60/x
  3. Step 3: Cross multiply
    668,674.50x = 922,077.03 × 572,197.60
  4. Step 4: Simplify right side
    668,674.50x = 527,610,263,581.13
  5. Step 5: Solve for x
    x = 527,610,263,581.13/668,674.50
  6. Step 6: Final answer
    x = 789,039.01

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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.