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Finding the Fourth Proportional to 692,653.07, 955,851.87 and 386,734.13

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Solution

The fourth proportional to 692,653.07, 955,851.87 and 386,734.13 is: 533,687.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,653.07 : 955,851.87 = 386,734.13 : x
  2. Step 2: Convert to fraction form
    692,653.07/955,851.87 = 386,734.13/x
  3. Step 3: Cross multiply
    692,653.07x = 955,851.87 × 386,734.13
  4. Step 4: Simplify right side
    692,653.07x = 369,660,541,608.76
  5. Step 5: Solve for x
    x = 369,660,541,608.76/692,653.07
  6. Step 6: Final answer
    x = 533,687.87

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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.