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Finding the Fourth Proportional to 692,659.14, 955,860.26 and 386,740.23

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Solution

The fourth proportional to 692,659.14, 955,860.26 and 386,740.23 is: 533,696.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,659.14 : 955,860.26 = 386,740.23 : x
  2. Step 2: Convert to fraction form
    692,659.14/955,860.26 = 386,740.23/x
  3. Step 3: Cross multiply
    692,659.14x = 955,860.26 × 386,740.23
  4. Step 4: Simplify right side
    692,659.14x = 369,669,612,987.81
  5. Step 5: Solve for x
    x = 369,669,612,987.81/692,659.14
  6. Step 6: Final answer
    x = 533,696.29

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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.