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Finding the Fourth Proportional to 1,195,583.94, 1,649,904.12 and 651,720.78

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Solution

The fourth proportional to 1,195,583.94, 1,649,904.12 and 651,720.78 is: 899,373.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,195,583.94 : 1,649,904.12 = 651,720.78 : x
  2. Step 2: Convert to fraction form
    1,195,583.94/1,649,904.12 = 651,720.78/x
  3. Step 3: Cross multiply
    1,195,583.94x = 1,649,904.12 × 651,720.78
  4. Step 4: Simplify right side
    1,195,583.94x = 1,075,276,800,011.61
  5. Step 5: Solve for x
    x = 1,075,276,800,011.61/1,195,583.94
  6. Step 6: Final answer
    x = 899,373.74

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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.