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Finding the Fourth Proportional to 610,713.15, 915,632.33 and 255,544.35

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Solution

The fourth proportional to 610,713.15, 915,632.33 and 255,544.35 is: 383,133.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,713.15 : 915,632.33 = 255,544.35 : x
  2. Step 2: Convert to fraction form
    610,713.15/915,632.33 = 255,544.35/x
  3. Step 3: Cross multiply
    610,713.15x = 915,632.33 × 255,544.35
  4. Step 4: Simplify right side
    610,713.15x = 233,984,667,331.11
  5. Step 5: Solve for x
    x = 233,984,667,331.11/610,713.15
  6. Step 6: Final answer
    x = 383,133.50

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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.