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Finding the Fourth Proportional to 713,606.60, 1,069,502.70 and 292,406.60

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Solution

The fourth proportional to 713,606.60, 1,069,502.70 and 292,406.60 is: 438,238.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,606.60 : 1,069,502.70 = 292,406.60 : x
  2. Step 2: Convert to fraction form
    713,606.60/1,069,502.70 = 292,406.60/x
  3. Step 3: Cross multiply
    713,606.60x = 1,069,502.70 × 292,406.60
  4. Step 4: Simplify right side
    713,606.60x = 312,729,648,197.82
  5. Step 5: Solve for x
    x = 312,729,648,197.82/713,606.60
  6. Step 6: Final answer
    x = 438,238.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.