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Finding the Fourth Proportional to 568,280.40, 852,809.40 and 315,560.40

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Solution

The fourth proportional to 568,280.40, 852,809.40 and 315,560.40 is: 473,556.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,280.40 : 852,809.40 = 315,560.40 : x
  2. Step 2: Convert to fraction form
    568,280.40/852,809.40 = 315,560.40/x
  3. Step 3: Cross multiply
    568,280.40x = 852,809.40 × 315,560.40
  4. Step 4: Simplify right side
    568,280.40x = 269,112,875,387.76
  5. Step 5: Solve for x
    x = 269,112,875,387.76/568,280.40
  6. Step 6: Final answer
    x = 473,556.50

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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.