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Finding the Fourth Proportional to 720,025.32, 993,593.82 and 429,964.24

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Solution

The fourth proportional to 720,025.32, 993,593.82 and 429,964.24 is: 593,326.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,025.32 : 993,593.82 = 429,964.24 : x
  2. Step 2: Convert to fraction form
    720,025.32/993,593.82 = 429,964.24/x
  3. Step 3: Cross multiply
    720,025.32x = 993,593.82 × 429,964.24
  4. Step 4: Simplify right side
    720,025.32x = 427,209,811,685.00
  5. Step 5: Solve for x
    x = 427,209,811,685.00/720,025.32
  6. Step 6: Final answer
    x = 593,326.10

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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.