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Finding the Fourth Proportional to 559,808.69, 772,506.92 and 318,057.71

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Solution

The fourth proportional to 559,808.69, 772,506.92 and 318,057.71 is: 438,903.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,808.69 : 772,506.92 = 318,057.71 : x
  2. Step 2: Convert to fraction form
    559,808.69/772,506.92 = 318,057.71/x
  3. Step 3: Cross multiply
    559,808.69x = 772,506.92 × 318,057.71
  4. Step 4: Simplify right side
    559,808.69x = 245,701,778,866.96
  5. Step 5: Solve for x
    x = 245,701,778,866.96/559,808.69
  6. Step 6: Final answer
    x = 438,903.12

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.