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Finding the Fourth Proportional to 669,697.61, 923,303.29 and 483,272.64

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Solution

The fourth proportional to 669,697.61, 923,303.29 and 483,272.64 is: 666,281.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,697.61 : 923,303.29 = 483,272.64 : x
  2. Step 2: Convert to fraction form
    669,697.61/923,303.29 = 483,272.64/x
  3. Step 3: Cross multiply
    669,697.61x = 923,303.29 × 483,272.64
  4. Step 4: Simplify right side
    669,697.61x = 446,207,218,478.99
  5. Step 5: Solve for x
    x = 446,207,218,478.99/669,697.61
  6. Step 6: Final answer
    x = 666,281.63

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Double scale
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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.