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Finding the Fourth Proportional to 603,909.40, 907,613.70 and 593,411.80

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Solution

The fourth proportional to 603,909.40, 907,613.70 and 593,411.80 is: 891,836.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,909.40 : 907,613.70 = 593,411.80 : x
  2. Step 2: Convert to fraction form
    603,909.40/907,613.70 = 593,411.80/x
  3. Step 3: Cross multiply
    603,909.40x = 907,613.70 × 593,411.80
  4. Step 4: Simplify right side
    603,909.40x = 538,588,679,421.66
  5. Step 5: Solve for x
    x = 538,588,679,421.66/603,909.40
  6. Step 6: Final answer
    x = 891,836.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.