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Finding the Fourth Proportional to 533,632.80, 736,413.02 and 291,915.30

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Solution

The fourth proportional to 533,632.80, 736,413.02 and 291,915.30 is: 402,842.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,632.80 : 736,413.02 = 291,915.30 : x
  2. Step 2: Convert to fraction form
    533,632.80/736,413.02 = 291,915.30/x
  3. Step 3: Cross multiply
    533,632.80x = 736,413.02 × 291,915.30
  4. Step 4: Simplify right side
    533,632.80x = 214,970,227,657.21
  5. Step 5: Solve for x
    x = 214,970,227,657.21/533,632.80
  6. Step 6: Final answer
    x = 402,842.98

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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.