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Finding the Fourth Proportional to 670,413.72, 925,189.16 and 364,510.74

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Solution

The fourth proportional to 670,413.72, 925,189.16 and 364,510.74 is: 503,034.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,413.72 : 925,189.16 = 364,510.74 : x
  2. Step 2: Convert to fraction form
    670,413.72/925,189.16 = 364,510.74/x
  3. Step 3: Cross multiply
    670,413.72x = 925,189.16 × 364,510.74
  4. Step 4: Simplify right side
    670,413.72x = 337,241,386,998.48
  5. Step 5: Solve for x
    x = 337,241,386,998.48/670,413.72
  6. Step 6: Final answer
    x = 503,034.73

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Double scale
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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.