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Finding the Fourth Proportional to 319,111.68, 440,365.44 and 175,871.68

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Solution

The fourth proportional to 319,111.68, 440,365.44 and 175,871.68 is: 242,698.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,111.68 : 440,365.44 = 175,871.68 : x
  2. Step 2: Convert to fraction form
    319,111.68/440,365.44 = 175,871.68/x
  3. Step 3: Cross multiply
    319,111.68x = 440,365.44 × 175,871.68
  4. Step 4: Simplify right side
    319,111.68x = 77,447,809,746.74
  5. Step 5: Solve for x
    x = 77,447,809,746.74/319,111.68
  6. Step 6: Final answer
    x = 242,698.14

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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.