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Finding the Fourth Proportional to 677,463.12, 934,128.42 and 554,564.70

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Solution

The fourth proportional to 677,463.12, 934,128.42 and 554,564.70 is: 764,668.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,463.12 : 934,128.42 = 554,564.70 : x
  2. Step 2: Convert to fraction form
    677,463.12/934,128.42 = 554,564.70/x
  3. Step 3: Cross multiply
    677,463.12x = 934,128.42 × 554,564.70
  4. Step 4: Simplify right side
    677,463.12x = 518,034,646,998.77
  5. Step 5: Solve for x
    x = 518,034,646,998.77/677,463.12
  6. Step 6: Final answer
    x = 764,668.41

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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.