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Finding the Fourth Proportional to 717,772.16, 990,548.03 and 411,904.51

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Solution

The fourth proportional to 717,772.16, 990,548.03 and 411,904.51 is: 568,441.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,772.16 : 990,548.03 = 411,904.51 : x
  2. Step 2: Convert to fraction form
    717,772.16/990,548.03 = 411,904.51/x
  3. Step 3: Cross multiply
    717,772.16x = 990,548.03 × 411,904.51
  4. Step 4: Simplify right side
    717,772.16x = 408,011,199,482.01
  5. Step 5: Solve for x
    x = 408,011,199,482.01/717,772.16
  6. Step 6: Final answer
    x = 568,441.10

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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.