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Finding the Fourth Proportional to 786,061.60, 1,176,370.80 and 470,744.80

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Solution

The fourth proportional to 786,061.60, 1,176,370.80 and 470,744.80 is: 704,487.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,061.60 : 1,176,370.80 = 470,744.80 : x
  2. Step 2: Convert to fraction form
    786,061.60/1,176,370.80 = 470,744.80/x
  3. Step 3: Cross multiply
    786,061.60x = 1,176,370.80 × 470,744.80
  4. Step 4: Simplify right side
    786,061.60x = 553,770,436,971.84
  5. Step 5: Solve for x
    x = 553,770,436,971.84/786,061.60
  6. Step 6: Final answer
    x = 704,487.33

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1.5x scale

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.