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Finding the Fourth Proportional to 556,912.06, 768,539.40 and 302,263.24

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Solution

The fourth proportional to 556,912.06, 768,539.40 and 302,263.24 is: 417,123.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,912.06 : 768,539.40 = 302,263.24 : x
  2. Step 2: Convert to fraction form
    556,912.06/768,539.40 = 302,263.24/x
  3. Step 3: Cross multiply
    556,912.06x = 768,539.40 × 302,263.24
  4. Step 4: Simplify right side
    556,912.06x = 232,301,209,111.66
  5. Step 5: Solve for x
    x = 232,301,209,111.66/556,912.06
  6. Step 6: Final answer
    x = 417,123.68

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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.