Home / 812,004,465.92-1,120,374,023.52-459,580,466.72

Finding the Fourth Proportional to 812,004,465.92, 1,120,374,023.52 and 459,580,466.72

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Solution

The fourth proportional to 812,004,465.92, 1,120,374,023.52 and 459,580,466.72 is: 634,112,296.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,004,465.92 : 1,120,374,023.52 = 459,580,466.72 : x
  2. Step 2: Convert to fraction form
    812,004,465.92/1,120,374,023.52 = 459,580,466.72/x
  3. Step 3: Cross multiply
    812,004,465.92x = 1,120,374,023.52 × 459,580,466.72
  4. Step 4: Simplify right side
    812,004,465.92x = 514,902,016,630,285,888
  5. Step 5: Solve for x
    x = 514,902,016,630,285,888/812,004,465.92
  6. Step 6: Final answer
    x = 634,112,296.47

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Double scale
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1.5x scale

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.