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Finding the Fourth Proportional to 519,552.77, 717,477.98 and 491,247.69

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Solution

The fourth proportional to 519,552.77, 717,477.98 and 491,247.69 is: 678,390.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,552.77 : 717,477.98 = 491,247.69 : x
  2. Step 2: Convert to fraction form
    519,552.77/717,477.98 = 491,247.69/x
  3. Step 3: Cross multiply
    519,552.77x = 717,477.98 × 491,247.69
  4. Step 4: Simplify right side
    519,552.77x = 352,459,397,844.63
  5. Step 5: Solve for x
    x = 352,459,397,844.63/519,552.77
  6. Step 6: Final answer
    x = 678,390.00

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Double scale
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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.