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Finding the Fourth Proportional to 365,308.84, 548,007.54 and 128,603.08

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Solution

The fourth proportional to 365,308.84, 548,007.54 and 128,603.08 is: 192,920.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,308.84 : 548,007.54 = 128,603.08 : x
  2. Step 2: Convert to fraction form
    365,308.84/548,007.54 = 128,603.08/x
  3. Step 3: Cross multiply
    365,308.84x = 548,007.54 × 128,603.08
  4. Step 4: Simplify right side
    365,308.84x = 70,475,457,507.22
  5. Step 5: Solve for x
    x = 70,475,457,507.22/365,308.84
  6. Step 6: Final answer
    x = 192,920.21

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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.