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Finding the Fourth Proportional to 1,565,640, 2,160,584.64 and 850,248

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Solution

The fourth proportional to 1,565,640, 2,160,584.64 and 850,248 is: 1,173,343.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565,640 : 2,160,584.64 = 850,248 : x
  2. Step 2: Convert to fraction form
    1,565,640/2,160,584.64 = 850,248/x
  3. Step 3: Cross multiply
    1,565,640x = 2,160,584.64 × 850,248
  4. Step 4: Simplify right side
    1,565,640x = 1,837,032,768,990.72
  5. Step 5: Solve for x
    x = 1,837,032,768,990.72/1,565,640
  6. Step 6: Final answer
    x = 1,173,343.02

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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.