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Finding the Fourth Proportional to 665,245,363.70, 997,868,045.55 and 665,245,363.70

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Solution

The fourth proportional to 665,245,363.70, 997,868,045.55 and 665,245,363.70 is: 997,868,045.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,245,363.70 : 997,868,045.55 = 665,245,363.70 : x
  2. Step 2: Convert to fraction form
    665,245,363.70/997,868,045.55 = 665,245,363.70/x
  3. Step 3: Cross multiply
    665,245,363.70x = 997,868,045.55 × 665,245,363.70
  4. Step 4: Simplify right side
    665,245,363.70x = 663,827,090,886,517,888
  5. Step 5: Solve for x
    x = 663,827,090,886,517,888/665,245,363.70
  6. Step 6: Final answer
    x = 997,868,045.55

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Double scale
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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.