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Finding the Fourth Proportional to 621,457.77, 931,336.17 and 469,529.95

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Solution

The fourth proportional to 621,457.77, 931,336.17 and 469,529.95 is: 703,652.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,457.77 : 931,336.17 = 469,529.95 : x
  2. Step 2: Convert to fraction form
    621,457.77/931,336.17 = 469,529.95/x
  3. Step 3: Cross multiply
    621,457.77x = 931,336.17 × 469,529.95
  4. Step 4: Simplify right side
    621,457.77x = 437,290,225,333.29
  5. Step 5: Solve for x
    x = 437,290,225,333.29/621,457.77
  6. Step 6: Final answer
    x = 703,652.36

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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.