Home / 1,440,640.93-1,988,457.93-828,856.36

Finding the Fourth Proportional to 1,440,640.93, 1,988,457.93 and 828,856.36

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Solution

The fourth proportional to 1,440,640.93, 1,988,457.93 and 828,856.36 is: 1,144,036.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,640.93 : 1,988,457.93 = 828,856.36 : x
  2. Step 2: Convert to fraction form
    1,440,640.93/1,988,457.93 = 828,856.36/x
  3. Step 3: Cross multiply
    1,440,640.93x = 1,988,457.93 × 828,856.36
  4. Step 4: Simplify right side
    1,440,640.93x = 1,648,146,001,872.93
  5. Step 5: Solve for x
    x = 1,648,146,001,872.93/1,440,640.93
  6. Step 6: Final answer
    x = 1,144,036.64

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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.