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Finding the Fourth Proportional to 431,533.76, 595,574.88 and 261,740.48

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Solution

The fourth proportional to 431,533.76, 595,574.88 and 261,740.48 is: 361,237.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,533.76 : 595,574.88 = 261,740.48 : x
  2. Step 2: Convert to fraction form
    431,533.76/595,574.88 = 261,740.48/x
  3. Step 3: Cross multiply
    431,533.76x = 595,574.88 × 261,740.48
  4. Step 4: Simplify right side
    431,533.76x = 155,886,054,967.14
  5. Step 5: Solve for x
    x = 155,886,054,967.14/431,533.76
  6. Step 6: Final answer
    x = 361,237.22

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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.