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Finding the Fourth Proportional to 615,047.80, 922,571.70 and 366,215.80

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Solution

The fourth proportional to 615,047.80, 922,571.70 and 366,215.80 is: 549,323.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,047.80 : 922,571.70 = 366,215.80 : x
  2. Step 2: Convert to fraction form
    615,047.80/922,571.70 = 366,215.80/x
  3. Step 3: Cross multiply
    615,047.80x = 922,571.70 × 366,215.80
  4. Step 4: Simplify right side
    615,047.80x = 337,860,333,172.86
  5. Step 5: Solve for x
    x = 337,860,333,172.86/615,047.80
  6. Step 6: Final answer
    x = 549,323.70

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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.