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Finding the Fourth Proportional to 630,643.60, 945,965.40 and 536,165.20

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Solution

The fourth proportional to 630,643.60, 945,965.40 and 536,165.20 is: 804,247.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,643.60 : 945,965.40 = 536,165.20 : x
  2. Step 2: Convert to fraction form
    630,643.60/945,965.40 = 536,165.20/x
  3. Step 3: Cross multiply
    630,643.60x = 945,965.40 × 536,165.20
  4. Step 4: Simplify right side
    630,643.60x = 507,193,727,884.08
  5. Step 5: Solve for x
    x = 507,193,727,884.08/630,643.60
  6. Step 6: Final answer
    x = 804,247.80

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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.