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Finding the Fourth Proportional to 477,412.20, 716,118.30 and 470,413.80

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Solution

The fourth proportional to 477,412.20, 716,118.30 and 470,413.80 is: 705,620.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,412.20 : 716,118.30 = 470,413.80 : x
  2. Step 2: Convert to fraction form
    477,412.20/716,118.30 = 470,413.80/x
  3. Step 3: Cross multiply
    477,412.20x = 716,118.30 × 470,413.80
  4. Step 4: Simplify right side
    477,412.20x = 336,871,930,752.54
  5. Step 5: Solve for x
    x = 336,871,930,752.54/477,412.20
  6. Step 6: Final answer
    x = 705,620.70

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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.