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Finding the Fourth Proportional to 1,245,783,415.73, 1,868,675,123.60 and 1,245,783,415.73

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Solution

The fourth proportional to 1,245,783,415.73, 1,868,675,123.60 and 1,245,783,415.73 is: 1,868,675,123.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,783,415.73 : 1,868,675,123.60 = 1,245,783,415.73 : x
  2. Step 2: Convert to fraction form
    1,245,783,415.73/1,868,675,123.60 = 1,245,783,415.73/x
  3. Step 3: Cross multiply
    1,245,783,415.73x = 1,868,675,123.60 × 1,245,783,415.73
  4. Step 4: Simplify right side
    1,245,783,415.73x = 2,327,964,478,368,088,064
  5. Step 5: Solve for x
    x = 2,327,964,478,368,088,064/1,245,783,415.73
  6. Step 6: Final answer
    x = 1,868,675,123.60

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Double scale
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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.