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Finding the Fourth Proportional to 811,927.60, 1,216,854.60 and 624,007.60

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Solution

The fourth proportional to 811,927.60, 1,216,854.60 and 624,007.60 is: 935,214.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,927.60 : 1,216,854.60 = 624,007.60 : x
  2. Step 2: Convert to fraction form
    811,927.60/1,216,854.60 = 624,007.60/x
  3. Step 3: Cross multiply
    811,927.60x = 1,216,854.60 × 624,007.60
  4. Step 4: Simplify right side
    811,927.60x = 759,326,518,494.96
  5. Step 5: Solve for x
    x = 759,326,518,494.96/811,927.60
  6. Step 6: Final answer
    x = 935,214.57

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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.