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Finding the Fourth Proportional to 635,415.16, 876,653.72 and 406,106.67

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Solution

The fourth proportional to 635,415.16, 876,653.72 and 406,106.67 is: 560,287.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,415.16 : 876,653.72 = 406,106.67 : x
  2. Step 2: Convert to fraction form
    635,415.16/876,653.72 = 406,106.67/x
  3. Step 3: Cross multiply
    635,415.16x = 876,653.72 × 406,106.67
  4. Step 4: Simplify right side
    635,415.16x = 356,014,922,972.31
  5. Step 5: Solve for x
    x = 356,014,922,972.31/635,415.16
  6. Step 6: Final answer
    x = 560,287.11

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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.