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Finding the Fourth Proportional to 604,412,728.40, 906,619,092.60 and 556,039,787.60

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Solution

The fourth proportional to 604,412,728.40, 906,619,092.60 and 556,039,787.60 is: 834,059,681.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,412,728.40 : 906,619,092.60 = 556,039,787.60 : x
  2. Step 2: Convert to fraction form
    604,412,728.40/906,619,092.60 = 556,039,787.60/x
  3. Step 3: Cross multiply
    604,412,728.40x = 906,619,092.60 × 556,039,787.60
  4. Step 4: Simplify right side
    604,412,728.40x = 504,116,287,683,408,768
  5. Step 5: Solve for x
    x = 504,116,287,683,408,768/604,412,728.40
  6. Step 6: Final answer
    x = 834,059,681.40

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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.