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Finding the Fourth Proportional to 680,363,355.72, 1,020,693,871.06 and 220,348,026.12

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Solution

The fourth proportional to 680,363,355.72, 1,020,693,871.06 and 220,348,026.12 is: 330,570,242.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,363,355.72 : 1,020,693,871.06 = 220,348,026.12 : x
  2. Step 2: Convert to fraction form
    680,363,355.72/1,020,693,871.06 = 220,348,026.12/x
  3. Step 3: Cross multiply
    680,363,355.72x = 1,020,693,871.06 × 220,348,026.12
  4. Step 4: Simplify right side
    680,363,355.72x = 224,907,879,760,852,800
  5. Step 5: Solve for x
    x = 224,907,879,760,852,800/680,363,355.72
  6. Step 6: Final answer
    x = 330,570,242.90

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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.