Home / 886,470,620.40-1,329,705,930.60-519,138,601.20

Finding the Fourth Proportional to 886,470,620.40, 1,329,705,930.60 and 519,138,601.20

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Solution

The fourth proportional to 886,470,620.40, 1,329,705,930.60 and 519,138,601.20 is: 778,707,901.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,470,620.40 : 1,329,705,930.60 = 519,138,601.20 : x
  2. Step 2: Convert to fraction form
    886,470,620.40/1,329,705,930.60 = 519,138,601.20/x
  3. Step 3: Cross multiply
    886,470,620.40x = 1,329,705,930.60 × 519,138,601.20
  4. Step 4: Simplify right side
    886,470,620.40x = 690,301,676,819,028,224
  5. Step 5: Solve for x
    x = 690,301,676,819,028,224/886,470,620.40
  6. Step 6: Final answer
    x = 778,707,901.80

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1.5x scale

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.