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Finding the Fourth Proportional to 572,077, 789,503.98 and 330,369.72

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Solution

The fourth proportional to 572,077, 789,503.98 and 330,369.72 is: 455,932.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,077 : 789,503.98 = 330,369.72 : x
  2. Step 2: Convert to fraction form
    572,077/789,503.98 = 330,369.72/x
  3. Step 3: Cross multiply
    572,077x = 789,503.98 × 330,369.72
  4. Step 4: Simplify right side
    572,077x = 260,828,208,811.49
  5. Step 5: Solve for x
    x = 260,828,208,811.49/572,077
  6. Step 6: Final answer
    x = 455,932.00

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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.