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Finding the Fourth Proportional to 472,394,705.70, 708,592,058.55 and 355,997,316.90

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Solution

The fourth proportional to 472,394,705.70, 708,592,058.55 and 355,997,316.90 is: 533,995,975.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,394,705.70 : 708,592,058.55 = 355,997,316.90 : x
  2. Step 2: Convert to fraction form
    472,394,705.70/708,592,058.55 = 355,997,316.90/x
  3. Step 3: Cross multiply
    472,394,705.70x = 708,592,058.55 × 355,997,316.90
  4. Step 4: Simplify right side
    472,394,705.70x = 252,256,871,620,447,680
  5. Step 5: Solve for x
    x = 252,256,871,620,447,680/472,394,705.70
  6. Step 6: Final answer
    x = 533,995,975.35

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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.