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Finding the Fourth Proportional to 313,413.65, 432,512.54 and 170,173.69

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Solution

The fourth proportional to 313,413.65, 432,512.54 and 170,173.69 is: 234,840.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,413.65 : 432,512.54 = 170,173.69 : x
  2. Step 2: Convert to fraction form
    313,413.65/432,512.54 = 170,173.69/x
  3. Step 3: Cross multiply
    313,413.65x = 432,512.54 × 170,173.69
  4. Step 4: Simplify right side
    313,413.65x = 73,602,254,903.07
  5. Step 5: Solve for x
    x = 73,602,254,903.07/313,413.65
  6. Step 6: Final answer
    x = 234,840.62

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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.