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Finding the Fourth Proportional to 995,331,319.30, 1,390,238,984.30 and 995,331,319.30

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Solution

The fourth proportional to 995,331,319.30, 1,390,238,984.30 and 995,331,319.30 is: 1,390,238,984.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    995,331,319.30 : 1,390,238,984.30 = 995,331,319.30 : x
  2. Step 2: Convert to fraction form
    995,331,319.30/1,390,238,984.30 = 995,331,319.30/x
  3. Step 3: Cross multiply
    995,331,319.30x = 1,390,238,984.30 × 995,331,319.30
  4. Step 4: Simplify right side
    995,331,319.30x = 1,383,748,402,385,610,752
  5. Step 5: Solve for x
    x = 1,383,748,402,385,610,752/995,331,319.30
  6. Step 6: Final answer
    x = 1,390,238,984.30

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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.