Home / 377,178.40-520,500.36-207,412.12

Finding the Fourth Proportional to 377,178.40, 520,500.36 and 207,412.12

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Solution

The fourth proportional to 377,178.40, 520,500.36 and 207,412.12 is: 286,225.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,178.40 : 520,500.36 = 207,412.12 : x
  2. Step 2: Convert to fraction form
    377,178.40/520,500.36 = 207,412.12/x
  3. Step 3: Cross multiply
    377,178.40x = 520,500.36 × 207,412.12
  4. Step 4: Simplify right side
    377,178.40x = 107,958,083,128.36
  5. Step 5: Solve for x
    x = 107,958,083,128.36/377,178.40
  6. Step 6: Final answer
    x = 286,225.52

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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.