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Finding the Fourth Proportional to 620,398.25, 931,060.58 and 460,842.60

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Solution

The fourth proportional to 620,398.25, 931,060.58 and 460,842.60 is: 691,607.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,398.25 : 931,060.58 = 460,842.60 : x
  2. Step 2: Convert to fraction form
    620,398.25/931,060.58 = 460,842.60/x
  3. Step 3: Cross multiply
    620,398.25x = 931,060.58 × 460,842.60
  4. Step 4: Simplify right side
    620,398.25x = 429,072,376,140.50
  5. Step 5: Solve for x
    x = 429,072,376,140.50/620,398.25
  6. Step 6: Final answer
    x = 691,607.98

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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.