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Finding the Fourth Proportional to 403,460.40, 604,931.40 and 166,897.20

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Solution

The fourth proportional to 403,460.40, 604,931.40 and 166,897.20 is: 250,238.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,460.40 : 604,931.40 = 166,897.20 : x
  2. Step 2: Convert to fraction form
    403,460.40/604,931.40 = 166,897.20/x
  3. Step 3: Cross multiply
    403,460.40x = 604,931.40 × 166,897.20
  4. Step 4: Simplify right side
    403,460.40x = 100,961,356,852.08
  5. Step 5: Solve for x
    x = 100,961,356,852.08/403,460.40
  6. Step 6: Final answer
    x = 250,238.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.