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Finding the Fourth Proportional to 806,748,600.64, 1,113,297,950.52 and 493,459,800.88

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Solution

The fourth proportional to 806,748,600.64, 1,113,297,950.52 and 493,459,800.88 is: 680,965,277.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,748,600.64 : 1,113,297,950.52 = 493,459,800.88 : x
  2. Step 2: Convert to fraction form
    806,748,600.64/1,113,297,950.52 = 493,459,800.88/x
  3. Step 3: Cross multiply
    806,748,600.64x = 1,113,297,950.52 × 493,459,800.88
  4. Step 4: Simplify right side
    806,748,600.64x = 549,367,784,983,711,296
  5. Step 5: Solve for x
    x = 549,367,784,983,711,296/806,748,600.64
  6. Step 6: Final answer
    x = 680,965,277.84

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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.