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Finding the Fourth Proportional to 559,516.80, 772,136.64 and 333,171.84

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Solution

The fourth proportional to 559,516.80, 772,136.64 and 333,171.84 is: 459,779.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,516.80 : 772,136.64 = 333,171.84 : x
  2. Step 2: Convert to fraction form
    559,516.80/772,136.64 = 333,171.84/x
  3. Step 3: Cross multiply
    559,516.80x = 772,136.64 × 333,171.84
  4. Step 4: Simplify right side
    559,516.80x = 257,254,185,080.22
  5. Step 5: Solve for x
    x = 257,254,185,080.22/559,516.80
  6. Step 6: Final answer
    x = 459,779.20

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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.