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Finding the Fourth Proportional to 538,164,018.60, 753,939,809.40 and 538,164,018.60

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Solution

The fourth proportional to 538,164,018.60, 753,939,809.40 and 538,164,018.60 is: 753,939,809.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,164,018.60 : 753,939,809.40 = 538,164,018.60 : x
  2. Step 2: Convert to fraction form
    538,164,018.60/753,939,809.40 = 538,164,018.60/x
  3. Step 3: Cross multiply
    538,164,018.60x = 753,939,809.40 × 538,164,018.60
  4. Step 4: Simplify right side
    538,164,018.60x = 405,743,277,609,222,080
  5. Step 5: Solve for x
    x = 405,743,277,609,222,080/538,164,018.60
  6. Step 6: Final answer
    x = 753,939,809.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.