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Finding the Fourth Proportional to 692,981.06, 956,329.54 and 406,707.62

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Solution

The fourth proportional to 692,981.06, 956,329.54 and 406,707.62 is: 561,265.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,981.06 : 956,329.54 = 406,707.62 : x
  2. Step 2: Convert to fraction form
    692,981.06/956,329.54 = 406,707.62/x
  3. Step 3: Cross multiply
    692,981.06x = 956,329.54 × 406,707.62
  4. Step 4: Simplify right side
    692,981.06x = 388,946,505,350.68
  5. Step 5: Solve for x
    x = 388,946,505,350.68/692,981.06
  6. Step 6: Final answer
    x = 561,265.71

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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.