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Finding the Fourth Proportional to 501,121,206.40, 751,681,809.60 and 501,121,206.40

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Solution

The fourth proportional to 501,121,206.40, 751,681,809.60 and 501,121,206.40 is: 751,681,809.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,121,206.40 : 751,681,809.60 = 501,121,206.40 : x
  2. Step 2: Convert to fraction form
    501,121,206.40/751,681,809.60 = 501,121,206.40/x
  3. Step 3: Cross multiply
    501,121,206.40x = 751,681,809.60 × 501,121,206.40
  4. Step 4: Simplify right side
    501,121,206.40x = 376,683,695,255,687,104
  5. Step 5: Solve for x
    x = 376,683,695,255,687,104/501,121,206.40
  6. Step 6: Final answer
    x = 751,681,809.60

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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.