Home / 928,733,605.77-1,281,613,694.43-505,348,929.66

Finding the Fourth Proportional to 928,733,605.77, 1,281,613,694.43 and 505,348,929.66

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Solution

The fourth proportional to 928,733,605.77, 1,281,613,694.43 and 505,348,929.66 is: 697,360,475.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,733,605.77 : 1,281,613,694.43 = 505,348,929.66 : x
  2. Step 2: Convert to fraction form
    928,733,605.77/1,281,613,694.43 = 505,348,929.66/x
  3. Step 3: Cross multiply
    928,733,605.77x = 1,281,613,694.43 × 505,348,929.66
  4. Step 4: Simplify right side
    928,733,605.77x = 647,662,108,717,798,912
  5. Step 5: Solve for x
    x = 647,662,108,717,798,912/928,733,605.77
  6. Step 6: Final answer
    x = 697,360,475.27

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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.