Home / 936,967,396.73-1,293,015,129.95-519,306,646.37

Finding the Fourth Proportional to 936,967,396.73, 1,293,015,129.95 and 519,306,646.37

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Solution

The fourth proportional to 936,967,396.73, 1,293,015,129.95 and 519,306,646.37 is: 716,643,239.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,967,396.73 : 1,293,015,129.95 = 519,306,646.37 : x
  2. Step 2: Convert to fraction form
    936,967,396.73/1,293,015,129.95 = 519,306,646.37/x
  3. Step 3: Cross multiply
    936,967,396.73x = 1,293,015,129.95 × 519,306,646.37
  4. Step 4: Simplify right side
    936,967,396.73x = 671,471,350,834,837,504
  5. Step 5: Solve for x
    x = 671,471,350,834,837,504/936,967,396.73
  6. Step 6: Final answer
    x = 716,643,239.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.