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Finding the Fourth Proportional to 686,502.65, 947,818.34 and 441,596.93

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Solution

The fourth proportional to 686,502.65, 947,818.34 and 441,596.93 is: 609,689.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,502.65 : 947,818.34 = 441,596.93 : x
  2. Step 2: Convert to fraction form
    686,502.65/947,818.34 = 441,596.93/x
  3. Step 3: Cross multiply
    686,502.65x = 947,818.34 × 441,596.93
  4. Step 4: Simplify right side
    686,502.65x = 418,553,662,194.62
  5. Step 5: Solve for x
    x = 418,553,662,194.62/686,502.65
  6. Step 6: Final answer
    x = 609,689.80

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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.