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Finding the Fourth Proportional to 350,570.63, 484,604.72 and 312,705.46

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Solution

The fourth proportional to 350,570.63, 484,604.72 and 312,705.46 is: 432,262.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,570.63 : 484,604.72 = 312,705.46 : x
  2. Step 2: Convert to fraction form
    350,570.63/484,604.72 = 312,705.46/x
  3. Step 3: Cross multiply
    350,570.63x = 484,604.72 × 312,705.46
  4. Step 4: Simplify right side
    350,570.63x = 151,538,537,899.22
  5. Step 5: Solve for x
    x = 151,538,537,899.22/350,570.63
  6. Step 6: Final answer
    x = 432,262.50

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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.