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Finding the Fourth Proportional to 760,662.20, 1,049,710.02 and 416,491.88

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Solution

The fourth proportional to 760,662.20, 1,049,710.02 and 416,491.88 is: 574,756.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,662.20 : 1,049,710.02 = 416,491.88 : x
  2. Step 2: Convert to fraction form
    760,662.20/1,049,710.02 = 416,491.88/x
  3. Step 3: Cross multiply
    760,662.20x = 1,049,710.02 × 416,491.88
  4. Step 4: Simplify right side
    760,662.20x = 437,195,699,684.64
  5. Step 5: Solve for x
    x = 437,195,699,684.64/760,662.20
  6. Step 6: Final answer
    x = 574,756.70

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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.