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Finding the Fourth Proportional to 553,669.05, 830,503.58 and 301,070.55

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Solution

The fourth proportional to 553,669.05, 830,503.58 and 301,070.55 is: 451,605.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,669.05 : 830,503.58 = 301,070.55 : x
  2. Step 2: Convert to fraction form
    553,669.05/830,503.58 = 301,070.55/x
  3. Step 3: Cross multiply
    553,669.05x = 830,503.58 × 301,070.55
  4. Step 4: Simplify right side
    553,669.05x = 250,040,168,102.22
  5. Step 5: Solve for x
    x = 250,040,168,102.22/553,669.05
  6. Step 6: Final answer
    x = 451,605.83

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Similar ratio
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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.