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Finding the Fourth Proportional to 719,613.25, 993,153.77 and 417,807.25

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Solution

The fourth proportional to 719,613.25, 993,153.77 and 417,807.25 is: 576,624.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,613.25 : 993,153.77 = 417,807.25 : x
  2. Step 2: Convert to fraction form
    719,613.25/993,153.77 = 417,807.25/x
  3. Step 3: Cross multiply
    719,613.25x = 993,153.77 × 417,807.25
  4. Step 4: Simplify right side
    719,613.25x = 414,946,845,470.83
  5. Step 5: Solve for x
    x = 414,946,845,470.83/719,613.25
  6. Step 6: Final answer
    x = 576,624.80

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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.