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Finding the Fourth Proportional to 403,239.60, 604,859.40 and 166,460.40

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Solution

The fourth proportional to 403,239.60, 604,859.40 and 166,460.40 is: 249,690.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,239.60 : 604,859.40 = 166,460.40 : x
  2. Step 2: Convert to fraction form
    403,239.60/604,859.40 = 166,460.40/x
  3. Step 3: Cross multiply
    403,239.60x = 604,859.40 × 166,460.40
  4. Step 4: Simplify right side
    403,239.60x = 100,685,137,667.76
  5. Step 5: Solve for x
    x = 100,685,137,667.76/403,239.60
  6. Step 6: Final answer
    x = 249,690.60

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1.5x scale

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.