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Finding the Fourth Proportional to 903,930.60, 1,356,770.70 and 549,636.60

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Solution

The fourth proportional to 903,930.60, 1,356,770.70 and 549,636.60 is: 824,986.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,930.60 : 1,356,770.70 = 549,636.60 : x
  2. Step 2: Convert to fraction form
    903,930.60/1,356,770.70 = 549,636.60/x
  3. Step 3: Cross multiply
    903,930.60x = 1,356,770.70 × 549,636.60
  4. Step 4: Simplify right side
    903,930.60x = 745,730,834,527.62
  5. Step 5: Solve for x
    x = 745,730,834,527.62/903,930.60
  6. Step 6: Final answer
    x = 824,986.82

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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.