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Finding the Fourth Proportional to 966,420.84, 1,333,624.24 and 536,728.64

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Solution

The fourth proportional to 966,420.84, 1,333,624.24 and 536,728.64 is: 740,665.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    966,420.84 : 1,333,624.24 = 536,728.64 : x
  2. Step 2: Convert to fraction form
    966,420.84/1,333,624.24 = 536,728.64/x
  3. Step 3: Cross multiply
    966,420.84x = 1,333,624.24 × 536,728.64
  4. Step 4: Simplify right side
    966,420.84x = 715,794,324,606.23
  5. Step 5: Solve for x
    x = 715,794,324,606.23/966,420.84
  6. Step 6: Final answer
    x = 740,665.24

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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.