Home / 928,733,606.89-1,281,613,695.99-505,348,930.78

Finding the Fourth Proportional to 928,733,606.89, 1,281,613,695.99 and 505,348,930.78

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Solution

The fourth proportional to 928,733,606.89, 1,281,613,695.99 and 505,348,930.78 is: 697,360,476.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,733,606.89 : 1,281,613,695.99 = 505,348,930.78 : x
  2. Step 2: Convert to fraction form
    928,733,606.89/1,281,613,695.99 = 505,348,930.78/x
  3. Step 3: Cross multiply
    928,733,606.89x = 1,281,613,695.99 × 505,348,930.78
  4. Step 4: Simplify right side
    928,733,606.89x = 647,662,110,939,023,616
  5. Step 5: Solve for x
    x = 647,662,110,939,023,616/928,733,606.89
  6. Step 6: Final answer
    x = 697,360,476.82

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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.