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Finding the Fourth Proportional to 692,841.80, 956,103.04 and 386,909.66

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Solution

The fourth proportional to 692,841.80, 956,103.04 and 386,909.66 is: 533,924.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,841.80 : 956,103.04 = 386,909.66 : x
  2. Step 2: Convert to fraction form
    692,841.80/956,103.04 = 386,909.66/x
  3. Step 3: Cross multiply
    692,841.80x = 956,103.04 × 386,909.66
  4. Step 4: Simplify right side
    692,841.80x = 369,925,505,005.26
  5. Step 5: Solve for x
    x = 369,925,505,005.26/692,841.80
  6. Step 6: Final answer
    x = 533,924.92

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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.