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Finding the Fourth Proportional to 693,152.88, 956,151.87 and 417,318.96

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Solution

The fourth proportional to 693,152.88, 956,151.87 and 417,318.96 is: 575,659.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,152.88 : 956,151.87 = 417,318.96 : x
  2. Step 2: Convert to fraction form
    693,152.88/956,151.87 = 417,318.96/x
  3. Step 3: Cross multiply
    693,152.88x = 956,151.87 × 417,318.96
  4. Step 4: Simplify right side
    693,152.88x = 399,020,303,990.46
  5. Step 5: Solve for x
    x = 399,020,303,990.46/693,152.88
  6. Step 6: Final answer
    x = 575,659.88

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Half scale
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Double scale
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Similar ratio
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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.