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Finding the Fourth Proportional to 571,026.24, 788,016.60 and 316,381.68

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Solution

The fourth proportional to 571,026.24, 788,016.60 and 316,381.68 is: 436,606.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,026.24 : 788,016.60 = 316,381.68 : x
  2. Step 2: Convert to fraction form
    571,026.24/788,016.60 = 316,381.68/x
  3. Step 3: Cross multiply
    571,026.24x = 788,016.60 × 316,381.68
  4. Step 4: Simplify right side
    571,026.24x = 249,314,015,775.89
  5. Step 5: Solve for x
    x = 249,314,015,775.89/571,026.24
  6. Step 6: Final answer
    x = 436,606.93

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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.