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Finding the Fourth Proportional to 653,496,313.20, 917,190,663.60 and 653,496,313.20

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Solution

The fourth proportional to 653,496,313.20, 917,190,663.60 and 653,496,313.20 is: 917,190,663.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,496,313.20 : 917,190,663.60 = 653,496,313.20 : x
  2. Step 2: Convert to fraction form
    653,496,313.20/917,190,663.60 = 653,496,313.20/x
  3. Step 3: Cross multiply
    653,496,313.20x = 917,190,663.60 × 653,496,313.20
  4. Step 4: Simplify right side
    653,496,313.20x = 599,380,717,164,061,440
  5. Step 5: Solve for x
    x = 599,380,717,164,061,440/653,496,313.20
  6. Step 6: Final answer
    x = 917,190,663.60

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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.