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Finding the Fourth Proportional to 677,145.49, 934,498.89 and 401,666.70

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Solution

The fourth proportional to 677,145.49, 934,498.89 and 401,666.70 is: 554,322.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,145.49 : 934,498.89 = 401,666.70 : x
  2. Step 2: Convert to fraction form
    677,145.49/934,498.89 = 401,666.70/x
  3. Step 3: Cross multiply
    677,145.49x = 934,498.89 × 401,666.70
  4. Step 4: Simplify right side
    677,145.49x = 375,357,084,395.03
  5. Step 5: Solve for x
    x = 375,357,084,395.03/677,145.49
  6. Step 6: Final answer
    x = 554,322.65

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.