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Finding the Fourth Proportional to 693,154.88, 956,154.63 and 417,320.96

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Solution

The fourth proportional to 693,154.88, 956,154.63 and 417,320.96 is: 575,662.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,154.88 : 956,154.63 = 417,320.96 : x
  2. Step 2: Convert to fraction form
    693,154.88/956,154.63 = 417,320.96/x
  3. Step 3: Cross multiply
    693,154.88x = 956,154.63 × 417,320.96
  4. Step 4: Simplify right side
    693,154.88x = 399,023,368,100.05
  5. Step 5: Solve for x
    x = 399,023,368,100.05/693,154.88
  6. Step 6: Final answer
    x = 575,662.64

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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.