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Finding the Fourth Proportional to 475,742.78, 656,534.04 and 260,870.03

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Solution

The fourth proportional to 475,742.78, 656,534.04 and 260,870.03 is: 360,005.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,742.78 : 656,534.04 = 260,870.03 : x
  2. Step 2: Convert to fraction form
    475,742.78/656,534.04 = 260,870.03/x
  3. Step 3: Cross multiply
    475,742.78x = 656,534.04 × 260,870.03
  4. Step 4: Simplify right side
    475,742.78x = 171,270,054,379.29
  5. Step 5: Solve for x
    x = 171,270,054,379.29/475,742.78
  6. Step 6: Final answer
    x = 360,005.58

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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.