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Finding the Fourth Proportional to 753,043,674.90, 1,129,565,512.35 and 753,043,674.90

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Solution

The fourth proportional to 753,043,674.90, 1,129,565,512.35 and 753,043,674.90 is: 1,129,565,512.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,043,674.90 : 1,129,565,512.35 = 753,043,674.90 : x
  2. Step 2: Convert to fraction form
    753,043,674.90/1,129,565,512.35 = 753,043,674.90/x
  3. Step 3: Cross multiply
    753,043,674.90x = 1,129,565,512.35 × 753,043,674.90
  4. Step 4: Simplify right side
    753,043,674.90x = 850,612,164,460,345,216
  5. Step 5: Solve for x
    x = 850,612,164,460,345,216/753,043,674.90
  6. Step 6: Final answer
    x = 1,129,565,512.35

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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.