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Finding the Fourth Proportional to 692,554.48, 955,721.40 and 386,613.16

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Solution

The fourth proportional to 692,554.48, 955,721.40 and 386,613.16 is: 533,524.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,554.48 : 955,721.40 = 386,613.16 : x
  2. Step 2: Convert to fraction form
    692,554.48/955,721.40 = 386,613.16/x
  3. Step 3: Cross multiply
    692,554.48x = 955,721.40 × 386,613.16
  4. Step 4: Simplify right side
    692,554.48x = 369,494,470,533.62
  5. Step 5: Solve for x
    x = 369,494,470,533.62/692,554.48
  6. Step 6: Final answer
    x = 533,524.05

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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.