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Finding the Fourth Proportional to 377,191.36, 520,509.60 and 207,415.36

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Solution

The fourth proportional to 377,191.36, 520,509.60 and 207,415.36 is: 286,225.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,191.36 : 520,509.60 = 207,415.36 : x
  2. Step 2: Convert to fraction form
    377,191.36/520,509.60 = 207,415.36/x
  3. Step 3: Cross multiply
    377,191.36x = 520,509.60 × 207,415.36
  4. Step 4: Simplify right side
    377,191.36x = 107,961,686,067.46
  5. Step 5: Solve for x
    x = 107,961,686,067.46/377,191.36
  6. Step 6: Final answer
    x = 286,225.24

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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.