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Finding the Fourth Proportional to 630,462,425.60, 945,693,638.40 and 569,240,422.40

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Solution

The fourth proportional to 630,462,425.60, 945,693,638.40 and 569,240,422.40 is: 853,860,633.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,462,425.60 : 945,693,638.40 = 569,240,422.40 : x
  2. Step 2: Convert to fraction form
    630,462,425.60/945,693,638.40 = 569,240,422.40/x
  3. Step 3: Cross multiply
    630,462,425.60x = 945,693,638.40 × 569,240,422.40
  4. Step 4: Simplify right side
    630,462,425.60x = 538,327,046,183,808,832
  5. Step 5: Solve for x
    x = 538,327,046,183,808,832/630,462,425.60
  6. Step 6: Final answer
    x = 853,860,633.60

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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.