Home / 931,360,653.06-1,397,040,980.67-378,533,559.63

Finding the Fourth Proportional to 931,360,653.06, 1,397,040,980.67 and 378,533,559.63

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Solution

The fourth proportional to 931,360,653.06, 1,397,040,980.67 and 378,533,559.63 is: 567,800,339.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,360,653.06 : 1,397,040,980.67 = 378,533,559.63 : x
  2. Step 2: Convert to fraction form
    931,360,653.06/1,397,040,980.67 = 378,533,559.63/x
  3. Step 3: Cross multiply
    931,360,653.06x = 1,397,040,980.67 × 378,533,559.63
  4. Step 4: Simplify right side
    931,360,653.06x = 528,826,895,362,001,152
  5. Step 5: Solve for x
    x = 528,826,895,362,001,152/931,360,653.06
  6. Step 6: Final answer
    x = 567,800,339.88

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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.