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Finding the Fourth Proportional to 692,761.40, 956,228.46 and 406,397.24

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Solution

The fourth proportional to 692,761.40, 956,228.46 and 406,397.24 is: 560,955.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,761.40 : 956,228.46 = 406,397.24 : x
  2. Step 2: Convert to fraction form
    692,761.40/956,228.46 = 406,397.24/x
  3. Step 3: Cross multiply
    692,761.40x = 956,228.46 × 406,397.24
  4. Step 4: Simplify right side
    692,761.40x = 388,608,606,953.45
  5. Step 5: Solve for x
    x = 388,608,606,953.45/692,761.40
  6. Step 6: Final answer
    x = 560,955.92

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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.