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Finding the Fourth Proportional to 633,122.28, 873,708.59 and 346,642.29

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Solution

The fourth proportional to 633,122.28, 873,708.59 and 346,642.29 is: 478,366.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,122.28 : 873,708.59 = 346,642.29 : x
  2. Step 2: Convert to fraction form
    633,122.28/873,708.59 = 346,642.29/x
  3. Step 3: Cross multiply
    633,122.28x = 873,708.59 × 346,642.29
  4. Step 4: Simplify right side
    633,122.28x = 302,864,347,296.88
  5. Step 5: Solve for x
    x = 302,864,347,296.88/633,122.28
  6. Step 6: Final answer
    x = 478,366.28

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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.