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Finding the Fourth Proportional to 717,518.64, 989,805.24 and 462,465.84

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Solution

The fourth proportional to 717,518.64, 989,805.24 and 462,465.84 is: 637,964.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,518.64 : 989,805.24 = 462,465.84 : x
  2. Step 2: Convert to fraction form
    717,518.64/989,805.24 = 462,465.84/x
  3. Step 3: Cross multiply
    717,518.64x = 989,805.24 × 462,465.84
  4. Step 4: Simplify right side
    717,518.64x = 457,751,111,753.00
  5. Step 5: Solve for x
    x = 457,751,111,753.00/717,518.64
  6. Step 6: Final answer
    x = 637,964.07

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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.