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Finding the Fourth Proportional to 423,313,214.70, 634,969,822.05 and 423,313,214.70

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Solution

The fourth proportional to 423,313,214.70, 634,969,822.05 and 423,313,214.70 is: 634,969,822.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,313,214.70 : 634,969,822.05 = 423,313,214.70 : x
  2. Step 2: Convert to fraction form
    423,313,214.70/634,969,822.05 = 423,313,214.70/x
  3. Step 3: Cross multiply
    423,313,214.70x = 634,969,822.05 × 423,313,214.70
  4. Step 4: Simplify right side
    423,313,214.70x = 268,791,116,609,472,416
  5. Step 5: Solve for x
    x = 268,791,116,609,472,416/423,313,214.70
  6. Step 6: Final answer
    x = 634,969,822.05

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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.