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Finding the Fourth Proportional to 319,148.56, 440,428.08 and 175,914.16

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Solution

The fourth proportional to 319,148.56, 440,428.08 and 175,914.16 is: 242,763.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,148.56 : 440,428.08 = 175,914.16 : x
  2. Step 2: Convert to fraction form
    319,148.56/440,428.08 = 175,914.16/x
  3. Step 3: Cross multiply
    319,148.56x = 440,428.08 × 175,914.16
  4. Step 4: Simplify right side
    319,148.56x = 77,477,535,733.61
  5. Step 5: Solve for x
    x = 77,477,535,733.61/319,148.56
  6. Step 6: Final answer
    x = 242,763.23

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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.