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Finding the Fourth Proportional to 976,892,511.60, 1,371,277,486.80 and 976,892,511.60

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Solution

The fourth proportional to 976,892,511.60, 1,371,277,486.80 and 976,892,511.60 is: 1,371,277,486.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,892,511.60 : 1,371,277,486.80 = 976,892,511.60 : x
  2. Step 2: Convert to fraction form
    976,892,511.60/1,371,277,486.80 = 976,892,511.60/x
  3. Step 3: Cross multiply
    976,892,511.60x = 1,371,277,486.80 × 976,892,511.60
  4. Step 4: Simplify right side
    976,892,511.60x = 1,339,590,708,180,587,776
  5. Step 5: Solve for x
    x = 1,339,590,708,180,587,776/976,892,511.60
  6. Step 6: Final answer
    x = 1,371,277,486.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.