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Finding the Fourth Proportional to 349,292, 482,022.96 and 190,316

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Solution

The fourth proportional to 349,292, 482,022.96 and 190,316 is: 262,636.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,292 : 482,022.96 = 190,316 : x
  2. Step 2: Convert to fraction form
    349,292/482,022.96 = 190,316/x
  3. Step 3: Cross multiply
    349,292x = 482,022.96 × 190,316
  4. Step 4: Simplify right side
    349,292x = 91,736,681,655.36
  5. Step 5: Solve for x
    x = 91,736,681,655.36/349,292
  6. Step 6: Final answer
    x = 262,636.08

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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.