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Finding the Fourth Proportional to 535,429.60, 803,144.40 and 409,458.40

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Solution

The fourth proportional to 535,429.60, 803,144.40 and 409,458.40 is: 614,187.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,429.60 : 803,144.40 = 409,458.40 : x
  2. Step 2: Convert to fraction form
    535,429.60/803,144.40 = 409,458.40/x
  3. Step 3: Cross multiply
    535,429.60x = 803,144.40 × 409,458.40
  4. Step 4: Simplify right side
    535,429.60x = 328,854,220,992.96
  5. Step 5: Solve for x
    x = 328,854,220,992.96/535,429.60
  6. Step 6: Final answer
    x = 614,187.60

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Similar ratio
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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.