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Finding the Fourth Proportional to 719,612.50, 993,152.73 and 417,806.50

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Solution

The fourth proportional to 719,612.50, 993,152.73 and 417,806.50 is: 576,623.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,612.50 : 993,152.73 = 417,806.50 : x
  2. Step 2: Convert to fraction form
    719,612.50/993,152.73 = 417,806.50/x
  3. Step 3: Cross multiply
    719,612.50x = 993,152.73 × 417,806.50
  4. Step 4: Simplify right side
    719,612.50x = 414,945,666,086.75
  5. Step 5: Solve for x
    x = 414,945,666,086.75/719,612.50
  6. Step 6: Final answer
    x = 576,623.76

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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.