Home / 1,640,386.56-2,263,730.32-915,191.16

Finding the Fourth Proportional to 1,640,386.56, 2,263,730.32 and 915,191.16

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Solution

The fourth proportional to 1,640,386.56, 2,263,730.32 and 915,191.16 is: 1,262,962.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,386.56 : 2,263,730.32 = 915,191.16 : x
  2. Step 2: Convert to fraction form
    1,640,386.56/2,263,730.32 = 915,191.16/x
  3. Step 3: Cross multiply
    1,640,386.56x = 2,263,730.32 × 915,191.16
  4. Step 4: Simplify right side
    1,640,386.56x = 2,071,745,977,487.97
  5. Step 5: Solve for x
    x = 2,071,745,977,487.97/1,640,386.56
  6. Step 6: Final answer
    x = 1,262,962.05

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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.