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Finding the Fourth Proportional to 806,748,596.64, 1,113,297,945 and 493,459,796.88

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Solution

The fourth proportional to 806,748,596.64, 1,113,297,945 and 493,459,796.88 is: 680,965,272.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,748,596.64 : 1,113,297,945 = 493,459,796.88 : x
  2. Step 2: Convert to fraction form
    806,748,596.64/1,113,297,945 = 493,459,796.88/x
  3. Step 3: Cross multiply
    806,748,596.64x = 1,113,297,945 × 493,459,796.88
  4. Step 4: Simplify right side
    806,748,596.64x = 549,367,777,806,621,376
  5. Step 5: Solve for x
    x = 549,367,777,806,621,376/806,748,596.64
  6. Step 6: Final answer
    x = 680,965,272.32

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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.