Home / 1,272,296.52-1,909,390.88-514,144.55

Finding the Fourth Proportional to 1,272,296.52, 1,909,390.88 and 514,144.55

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Solution

The fourth proportional to 1,272,296.52, 1,909,390.88 and 514,144.55 is: 771,599.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,296.52 : 1,909,390.88 = 514,144.55 : x
  2. Step 2: Convert to fraction form
    1,272,296.52/1,909,390.88 = 514,144.55/x
  3. Step 3: Cross multiply
    1,272,296.52x = 1,909,390.88 × 514,144.55
  4. Step 4: Simplify right side
    1,272,296.52x = 981,702,920,830.54
  5. Step 5: Solve for x
    x = 981,702,920,830.54/1,272,296.52
  6. Step 6: Final answer
    x = 771,599.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.