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Finding the Fourth Proportional to 528,870,663.20, 793,305,994.80 and 528,870,663.20

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Solution

The fourth proportional to 528,870,663.20, 793,305,994.80 and 528,870,663.20 is: 793,305,994.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,870,663.20 : 793,305,994.80 = 528,870,663.20 : x
  2. Step 2: Convert to fraction form
    528,870,663.20/793,305,994.80 = 528,870,663.20/x
  3. Step 3: Cross multiply
    528,870,663.20x = 793,305,994.80 × 528,870,663.20
  4. Step 4: Simplify right side
    528,870,663.20x = 419,556,267,590,411,712
  5. Step 5: Solve for x
    x = 419,556,267,590,411,712/528,870,663.20
  6. Step 6: Final answer
    x = 793,305,994.80

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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.