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Finding the Fourth Proportional to 613,594,976.74, 846,736,603.89 and 345,664,567.91

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Solution

The fourth proportional to 613,594,976.74, 846,736,603.89 and 345,664,567.91 is: 477,003,322.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,594,976.74 : 846,736,603.89 = 345,664,567.91 : x
  2. Step 2: Convert to fraction form
    613,594,976.74/846,736,603.89 = 345,664,567.91/x
  3. Step 3: Cross multiply
    613,594,976.74x = 846,736,603.89 × 345,664,567.91
  4. Step 4: Simplify right side
    613,594,976.74x = 292,686,842,319,334,528
  5. Step 5: Solve for x
    x = 292,686,842,319,334,528/613,594,976.74
  6. Step 6: Final answer
    x = 477,003,322.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.