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Finding the Fourth Proportional to 532,045.36, 734,222.28 and 305,690.32

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Solution

The fourth proportional to 532,045.36, 734,222.28 and 305,690.32 is: 421,852.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,045.36 : 734,222.28 = 305,690.32 : x
  2. Step 2: Convert to fraction form
    532,045.36/734,222.28 = 305,690.32/x
  3. Step 3: Cross multiply
    532,045.36x = 734,222.28 × 305,690.32
  4. Step 4: Simplify right side
    532,045.36x = 224,444,643,724.33
  5. Step 5: Solve for x
    x = 224,444,643,724.33/532,045.36
  6. Step 6: Final answer
    x = 421,852.46

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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.