Home / 319,340.07-440,681.11-176,090.76

Finding the Fourth Proportional to 319,340.07, 440,681.11 and 176,090.76

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Solution

The fourth proportional to 319,340.07, 440,681.11 and 176,090.76 is: 243,000.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,340.07 : 440,681.11 = 176,090.76 : x
  2. Step 2: Convert to fraction form
    319,340.07/440,681.11 = 176,090.76/x
  3. Step 3: Cross multiply
    319,340.07x = 440,681.11 × 176,090.76
  4. Step 4: Simplify right side
    319,340.07x = 77,599,871,137.32
  5. Step 5: Solve for x
    x = 77,599,871,137.32/319,340.07
  6. Step 6: Final answer
    x = 243,000.73

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1.5x scale

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.