Home / 1,440,641.93-1,988,459.31-828,857.36

Finding the Fourth Proportional to 1,440,641.93, 1,988,459.31 and 828,857.36

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Solution

The fourth proportional to 1,440,641.93, 1,988,459.31 and 828,857.36 is: 1,144,038.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,641.93 : 1,988,459.31 = 828,857.36 : x
  2. Step 2: Convert to fraction form
    1,440,641.93/1,988,459.31 = 828,857.36/x
  3. Step 3: Cross multiply
    1,440,641.93x = 1,988,459.31 × 828,857.36
  4. Step 4: Simplify right side
    1,440,641.93x = 1,648,149,134,154.02
  5. Step 5: Solve for x
    x = 1,648,149,134,154.02/1,440,641.93
  6. Step 6: Final answer
    x = 1,144,038.02

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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.