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Finding the Fourth Proportional to 965,830.60, 1,448,681.10 and 255,843.40

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Solution

The fourth proportional to 965,830.60, 1,448,681.10 and 255,843.40 is: 383,747.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,830.60 : 1,448,681.10 = 255,843.40 : x
  2. Step 2: Convert to fraction form
    965,830.60/1,448,681.10 = 255,843.40/x
  3. Step 3: Cross multiply
    965,830.60x = 1,448,681.10 × 255,843.40
  4. Step 4: Simplify right side
    965,830.60x = 370,635,498,139.74
  5. Step 5: Solve for x
    x = 370,635,498,139.74/965,830.60
  6. Step 6: Final answer
    x = 383,747.93

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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.