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Finding the Fourth Proportional to 995,328,779.60, 1,490,305,783.80 and 995,328,779.60

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Solution

The fourth proportional to 995,328,779.60, 1,490,305,783.80 and 995,328,779.60 is: 1,490,305,783.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    995,328,779.60 : 1,490,305,783.80 = 995,328,779.60 : x
  2. Step 2: Convert to fraction form
    995,328,779.60/1,490,305,783.80 = 995,328,779.60/x
  3. Step 3: Cross multiply
    995,328,779.60x = 1,490,305,783.80 × 995,328,779.60
  4. Step 4: Simplify right side
    995,328,779.60x = 1,483,344,237,020,475,392
  5. Step 5: Solve for x
    x = 1,483,344,237,020,475,392/995,328,779.60
  6. Step 6: Final answer
    x = 1,490,305,783.80

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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.