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Finding the Fourth Proportional to 692,582.40, 955,981.44 and 406,218.24

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Solution

The fourth proportional to 692,582.40, 955,981.44 and 406,218.24 is: 560,708.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,582.40 : 955,981.44 = 406,218.24 : x
  2. Step 2: Convert to fraction form
    692,582.40/955,981.44 = 406,218.24/x
  3. Step 3: Cross multiply
    692,582.40x = 955,981.44 × 406,218.24
  4. Step 4: Simplify right side
    692,582.40x = 388,337,098,029.47
  5. Step 5: Solve for x
    x = 388,337,098,029.47/692,582.40
  6. Step 6: Final answer
    x = 560,708.87

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Double scale
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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.