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Finding the Fourth Proportional to 719,036.87, 992,330.42 and 413,172.67

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Solution

The fourth proportional to 719,036.87, 992,330.42 and 413,172.67 is: 570,212.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,036.87 : 992,330.42 = 413,172.67 : x
  2. Step 2: Convert to fraction form
    719,036.87/992,330.42 = 413,172.67/x
  3. Step 3: Cross multiply
    719,036.87x = 992,330.42 × 413,172.67
  4. Step 4: Simplify right side
    719,036.87x = 410,003,809,153.62
  5. Step 5: Solve for x
    x = 410,003,809,153.62/719,036.87
  6. Step 6: Final answer
    x = 570,212.50

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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.