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Finding the Fourth Proportional to 576,726.80, 864,053.40 and 470,973.20

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Solution

The fourth proportional to 576,726.80, 864,053.40 and 470,973.20 is: 705,613.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,726.80 : 864,053.40 = 470,973.20 : x
  2. Step 2: Convert to fraction form
    576,726.80/864,053.40 = 470,973.20/x
  3. Step 3: Cross multiply
    576,726.80x = 864,053.40 × 470,973.20
  4. Step 4: Simplify right side
    576,726.80x = 406,945,994,768.88
  5. Step 5: Solve for x
    x = 406,945,994,768.88/576,726.80
  6. Step 6: Final answer
    x = 705,613.12

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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.