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Finding the Fourth Proportional to 692,423.99, 955,704.54 and 406,036.34

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Solution

The fourth proportional to 692,423.99, 955,704.54 and 406,036.34 is: 560,423.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,423.99 : 955,704.54 = 406,036.34 : x
  2. Step 2: Convert to fraction form
    692,423.99/955,704.54 = 406,036.34/x
  3. Step 3: Cross multiply
    692,423.99x = 955,704.54 × 406,036.34
  4. Step 4: Simplify right side
    692,423.99x = 388,050,767,757.14
  5. Step 5: Solve for x
    x = 388,050,767,757.14/692,423.99
  6. Step 6: Final answer
    x = 560,423.64

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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.