Home / 472,392,587.70-708,588,881.55-455,173,899.30

Finding the Fourth Proportional to 472,392,587.70, 708,588,881.55 and 455,173,899.30

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Solution

The fourth proportional to 472,392,587.70, 708,588,881.55 and 455,173,899.30 is: 682,760,848.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,587.70 : 708,588,881.55 = 455,173,899.30 : x
  2. Step 2: Convert to fraction form
    472,392,587.70/708,588,881.55 = 455,173,899.30/x
  3. Step 3: Cross multiply
    472,392,587.70x = 708,588,881.55 × 455,173,899.30
  4. Step 4: Simplify right side
    472,392,587.70x = 322,531,164,215,739,328
  5. Step 5: Solve for x
    x = 322,531,164,215,739,328/472,392,587.70
  6. Step 6: Final answer
    x = 682,760,848.95

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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.