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Finding the Fourth Proportional to 587,661,709.60, 881,492,564.40 and 551,829,901.60

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Solution

The fourth proportional to 587,661,709.60, 881,492,564.40 and 551,829,901.60 is: 827,744,852.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,661,709.60 : 881,492,564.40 = 551,829,901.60 : x
  2. Step 2: Convert to fraction form
    587,661,709.60/881,492,564.40 = 551,829,901.60/x
  3. Step 3: Cross multiply
    587,661,709.60x = 881,492,564.40 × 551,829,901.60
  4. Step 4: Simplify right side
    587,661,709.60x = 486,433,955,073,983,680
  5. Step 5: Solve for x
    x = 486,433,955,073,983,680/587,661,709.60
  6. Step 6: Final answer
    x = 827,744,852.40

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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.