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Finding the Fourth Proportional to 992,957,940, 1,370,281,892.40 and 575,512,364.52

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Solution

The fourth proportional to 992,957,940, 1,370,281,892.40 and 575,512,364.52 is: 794,207,025.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,957,940 : 1,370,281,892.40 = 575,512,364.52 : x
  2. Step 2: Convert to fraction form
    992,957,940/1,370,281,892.40 = 575,512,364.52/x
  3. Step 3: Cross multiply
    992,957,940x = 1,370,281,892.40 × 575,512,364.52
  4. Step 4: Simplify right side
    992,957,940x = 788,614,171,954,064,256
  5. Step 5: Solve for x
    x = 788,614,171,954,064,256/992,957,940
  6. Step 6: Final answer
    x = 794,207,025.48

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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.