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Finding the Fourth Proportional to 630,135,543.60, 945,203,315.40 and 630,135,543.60

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Solution

The fourth proportional to 630,135,543.60, 945,203,315.40 and 630,135,543.60 is: 945,203,315.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,135,543.60 : 945,203,315.40 = 630,135,543.60 : x
  2. Step 2: Convert to fraction form
    630,135,543.60/945,203,315.40 = 630,135,543.60/x
  3. Step 3: Cross multiply
    630,135,543.60x = 945,203,315.40 × 630,135,543.60
  4. Step 4: Simplify right side
    630,135,543.60x = 595,606,204,962,101,248
  5. Step 5: Solve for x
    x = 595,606,204,962,101,248/630,135,543.60
  6. Step 6: Final answer
    x = 945,203,315.40

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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.