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Finding the Fourth Proportional to 560,962.14, 774,127.68 and 306,313.56

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Solution

The fourth proportional to 560,962.14, 774,127.68 and 306,313.56 is: 422,712.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,962.14 : 774,127.68 = 306,313.56 : x
  2. Step 2: Convert to fraction form
    560,962.14/774,127.68 = 306,313.56/x
  3. Step 3: Cross multiply
    560,962.14x = 774,127.68 × 306,313.56
  4. Step 4: Simplify right side
    560,962.14x = 237,125,805,555.34
  5. Step 5: Solve for x
    x = 237,125,805,555.34/560,962.14
  6. Step 6: Final answer
    x = 422,712.67

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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.