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Finding the Fourth Proportional to 692,324.61, 955,455.92 and 386,460.51

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Solution

The fourth proportional to 692,324.61, 955,455.92 and 386,460.51 is: 533,342.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,324.61 : 955,455.92 = 386,460.51 : x
  2. Step 2: Convert to fraction form
    692,324.61/955,455.92 = 386,460.51/x
  3. Step 3: Cross multiply
    692,324.61x = 955,455.92 × 386,460.51
  4. Step 4: Simplify right side
    692,324.61x = 369,245,982,125.72
  5. Step 5: Solve for x
    x = 369,245,982,125.72/692,324.61
  6. Step 6: Final answer
    x = 533,342.27

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1.5x scale

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.