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Finding the Fourth Proportional to 592,415.76, 817,529.94 and 320,482.56

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Solution

The fourth proportional to 592,415.76, 817,529.94 and 320,482.56 is: 442,263.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,415.76 : 817,529.94 = 320,482.56 : x
  2. Step 2: Convert to fraction form
    592,415.76/817,529.94 = 320,482.56/x
  3. Step 3: Cross multiply
    592,415.76x = 817,529.94 × 320,482.56
  4. Step 4: Simplify right side
    592,415.76x = 262,004,088,047.85
  5. Step 5: Solve for x
    x = 262,004,088,047.85/592,415.76
  6. Step 6: Final answer
    x = 442,263.87

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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.