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Finding the Fourth Proportional to 569,765.79, 786,362.07 and 354,975.03

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Solution

The fourth proportional to 569,765.79, 786,362.07 and 354,975.03 is: 489,918.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,765.79 : 786,362.07 = 354,975.03 : x
  2. Step 2: Convert to fraction form
    569,765.79/786,362.07 = 354,975.03/x
  3. Step 3: Cross multiply
    569,765.79x = 786,362.07 × 354,975.03
  4. Step 4: Simplify right side
    569,765.79x = 279,138,899,389.11
  5. Step 5: Solve for x
    x = 279,138,899,389.11/569,765.79
  6. Step 6: Final answer
    x = 489,918.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.