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Finding the Fourth Proportional to 316,985,441.60, 442,872,625.60 and 316,985,441.60

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Solution

The fourth proportional to 316,985,441.60, 442,872,625.60 and 316,985,441.60 is: 442,872,625.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,985,441.60 : 442,872,625.60 = 316,985,441.60 : x
  2. Step 2: Convert to fraction form
    316,985,441.60/442,872,625.60 = 316,985,441.60/x
  3. Step 3: Cross multiply
    316,985,441.60x = 442,872,625.60 × 316,985,441.60
  4. Step 4: Simplify right side
    316,985,441.60x = 140,384,174,798,367,488
  5. Step 5: Solve for x
    x = 140,384,174,798,367,488/316,985,441.60
  6. Step 6: Final answer
    x = 442,872,625.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.