Home / 438,030.25-657,116.46-171,646.36

Finding the Fourth Proportional to 438,030.25, 657,116.46 and 171,646.36

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Solution

The fourth proportional to 438,030.25, 657,116.46 and 171,646.36 is: 257,497.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,030.25 : 657,116.46 = 171,646.36 : x
  2. Step 2: Convert to fraction form
    438,030.25/657,116.46 = 171,646.36/x
  3. Step 3: Cross multiply
    438,030.25x = 657,116.46 × 171,646.36
  4. Step 4: Simplify right side
    438,030.25x = 112,791,648,455.09
  5. Step 5: Solve for x
    x = 112,791,648,455.09/438,030.25
  6. Step 6: Final answer
    x = 257,497.40

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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.