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Finding the Fourth Proportional to 553,402.64, 763,806.84 and 362,346.32

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Solution

The fourth proportional to 553,402.64, 763,806.84 and 362,346.32 is: 500,110.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,402.64 : 763,806.84 = 362,346.32 : x
  2. Step 2: Convert to fraction form
    553,402.64/763,806.84 = 362,346.32/x
  3. Step 3: Cross multiply
    553,402.64x = 763,806.84 × 362,346.32
  4. Step 4: Simplify right side
    553,402.64x = 276,762,597,664.83
  5. Step 5: Solve for x
    x = 276,762,597,664.83/553,402.64
  6. Step 6: Final answer
    x = 500,110.73

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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.