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Finding the Fourth Proportional to 714,219.36, 985,768.56 and 412,372.32

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Solution

The fourth proportional to 714,219.36, 985,768.56 and 412,372.32 is: 569,158.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,219.36 : 985,768.56 = 412,372.32 : x
  2. Step 2: Convert to fraction form
    714,219.36/985,768.56 = 412,372.32/x
  3. Step 3: Cross multiply
    714,219.36x = 985,768.56 × 412,372.32
  4. Step 4: Simplify right side
    714,219.36x = 406,503,668,070.26
  5. Step 5: Solve for x
    x = 406,503,668,070.26/714,219.36
  6. Step 6: Final answer
    x = 569,158.01

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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.