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Finding the Fourth Proportional to 357,338.47, 533,437.32 and 306,186.67

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Solution

The fourth proportional to 357,338.47, 533,437.32 and 306,186.67 is: 457,077.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,338.47 : 533,437.32 = 306,186.67 : x
  2. Step 2: Convert to fraction form
    357,338.47/533,437.32 = 306,186.67/x
  3. Step 3: Cross multiply
    357,338.47x = 533,437.32 × 306,186.67
  4. Step 4: Simplify right side
    357,338.47x = 163,331,396,664.52
  5. Step 5: Solve for x
    x = 163,331,396,664.52/357,338.47
  6. Step 6: Final answer
    x = 457,077.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.