Home / 919,168.15-1,378,750.17-437,935.20

Finding the Fourth Proportional to 919,168.15, 1,378,750.17 and 437,935.20

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Solution

The fourth proportional to 919,168.15, 1,378,750.17 and 437,935.20 is: 656,901.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,168.15 : 1,378,750.17 = 437,935.20 : x
  2. Step 2: Convert to fraction form
    919,168.15/1,378,750.17 = 437,935.20/x
  3. Step 3: Cross multiply
    919,168.15x = 1,378,750.17 × 437,935.20
  4. Step 4: Simplify right side
    919,168.15x = 603,803,231,448.98
  5. Step 5: Solve for x
    x = 603,803,231,448.98/919,168.15
  6. Step 6: Final answer
    x = 656,901.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.