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Finding the Fourth Proportional to 969,752,893.60, 1,455,542,631.60 and 510,020,999.20

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Solution

The fourth proportional to 969,752,893.60, 1,455,542,631.60 and 510,020,999.20 is: 765,511,824.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,752,893.60 : 1,455,542,631.60 = 510,020,999.20 : x
  2. Step 2: Convert to fraction form
    969,752,893.60/1,455,542,631.60 = 510,020,999.20/x
  3. Step 3: Cross multiply
    969,752,893.60x = 1,455,542,631.60 × 510,020,999.20
  4. Step 4: Simplify right side
    969,752,893.60x = 742,357,307,346,829,440
  5. Step 5: Solve for x
    x = 742,357,307,346,829,440/969,752,893.60
  6. Step 6: Final answer
    x = 765,511,824.97

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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.