Home / 438,048.36-657,077.76-171,934.20

Finding the Fourth Proportional to 438,048.36, 657,077.76 and 171,934.20

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Solution

The fourth proportional to 438,048.36, 657,077.76 and 171,934.20 is: 257,903.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,048.36 : 657,077.76 = 171,934.20 : x
  2. Step 2: Convert to fraction form
    438,048.36/657,077.76 = 171,934.20/x
  3. Step 3: Cross multiply
    438,048.36x = 657,077.76 × 171,934.20
  4. Step 4: Simplify right side
    438,048.36x = 112,974,139,003.39
  5. Step 5: Solve for x
    x = 112,974,139,003.39/438,048.36
  6. Step 6: Final answer
    x = 257,903.35

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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.