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Finding the Fourth Proportional to 1,051,573,960.03, 1,443,572,965.81 and 902,636,512.91

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Solution

The fourth proportional to 1,051,573,960.03, 1,443,572,965.81 and 902,636,512.91 is: 1,239,115,571.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051,573,960.03 : 1,443,572,965.81 = 902,636,512.91 : x
  2. Step 2: Convert to fraction form
    1,051,573,960.03/1,443,572,965.81 = 902,636,512.91/x
  3. Step 3: Cross multiply
    1,051,573,960.03x = 1,443,572,965.81 × 902,636,512.91
  4. Step 4: Simplify right side
    1,051,573,960.03x = 1,303,021,667,989,884,928
  5. Step 5: Solve for x
    x = 1,303,021,667,989,884,928/1,051,573,960.03
  6. Step 6: Final answer
    x = 1,239,115,571.06

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.