Home / 376,928.15-520,154.81-207,158.63

Finding the Fourth Proportional to 376,928.15, 520,154.81 and 207,158.63

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Solution

The fourth proportional to 376,928.15, 520,154.81 and 207,158.63 is: 285,875.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,928.15 : 520,154.81 = 207,158.63 : x
  2. Step 2: Convert to fraction form
    376,928.15/520,154.81 = 207,158.63/x
  3. Step 3: Cross multiply
    376,928.15x = 520,154.81 × 207,158.63
  4. Step 4: Simplify right side
    376,928.15x = 107,754,557,827.51
  5. Step 5: Solve for x
    x = 107,754,557,827.51/376,928.15
  6. Step 6: Final answer
    x = 285,875.59

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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.