Home / 728,275,518.95-1,092,413,278.43-644,095,264.55

Finding the Fourth Proportional to 728,275,518.95, 1,092,413,278.43 and 644,095,264.55

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Solution

The fourth proportional to 728,275,518.95, 1,092,413,278.43 and 644,095,264.55 is: 966,142,896.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,275,518.95 : 1,092,413,278.43 = 644,095,264.55 : x
  2. Step 2: Convert to fraction form
    728,275,518.95/1,092,413,278.43 = 644,095,264.55/x
  3. Step 3: Cross multiply
    728,275,518.95x = 1,092,413,278.43 × 644,095,264.55
  4. Step 4: Simplify right side
    728,275,518.95x = 703,618,219,565,083,136
  5. Step 5: Solve for x
    x = 703,618,219,565,083,136/728,275,518.95
  6. Step 6: Final answer
    x = 966,142,896.83

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Double scale
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1.5x scale

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.