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Finding the Fourth Proportional to 886,671,335.88, 1,223,553,854.64 and 490,170,679.68

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Solution

The fourth proportional to 886,671,335.88, 1,223,553,854.64 and 490,170,679.68 is: 676,406,465.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,671,335.88 : 1,223,553,854.64 = 490,170,679.68 : x
  2. Step 2: Convert to fraction form
    886,671,335.88/1,223,553,854.64 = 490,170,679.68/x
  3. Step 3: Cross multiply
    886,671,335.88x = 1,223,553,854.64 × 490,170,679.68
  4. Step 4: Simplify right side
    886,671,335.88x = 599,750,224,553,972,736
  5. Step 5: Solve for x
    x = 599,750,224,553,972,736/886,671,335.88
  6. Step 6: Final answer
    x = 676,406,465.72

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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.