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Finding the Fourth Proportional to 693,156.36, 956,156.72 and 417,322.48

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Solution

The fourth proportional to 693,156.36, 956,156.72 and 417,322.48 is: 575,664.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,156.36 : 956,156.72 = 417,322.48 : x
  2. Step 2: Convert to fraction form
    693,156.36/956,156.72 = 417,322.48/x
  3. Step 3: Cross multiply
    693,156.36x = 956,156.72 × 417,322.48
  4. Step 4: Simplify right side
    693,156.36x = 399,025,693,659.07
  5. Step 5: Solve for x
    x = 399,025,693,659.07/693,156.36
  6. Step 6: Final answer
    x = 575,664.77

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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.