Home / 627,134.70-865,804.95-412,897.50

Finding the Fourth Proportional to 627,134.70, 865,804.95 and 412,897.50

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Solution

The fourth proportional to 627,134.70, 865,804.95 and 412,897.50 is: 570,034.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,134.70 : 865,804.95 = 412,897.50 : x
  2. Step 2: Convert to fraction form
    627,134.70/865,804.95 = 412,897.50/x
  3. Step 3: Cross multiply
    627,134.70x = 865,804.95 × 412,897.50
  4. Step 4: Simplify right side
    627,134.70x = 357,488,699,342.63
  5. Step 5: Solve for x
    x = 357,488,699,342.63/627,134.70
  6. Step 6: Final answer
    x = 570,034.95

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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.