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Finding the Fourth Proportional to 406,058.90, 607,776.15 and 316,829.30

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Solution

The fourth proportional to 406,058.90, 607,776.15 and 316,829.30 is: 474,220.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,058.90 : 607,776.15 = 316,829.30 : x
  2. Step 2: Convert to fraction form
    406,058.90/607,776.15 = 316,829.30/x
  3. Step 3: Cross multiply
    406,058.90x = 607,776.15 × 316,829.30
  4. Step 4: Simplify right side
    406,058.90x = 192,561,292,161.20
  5. Step 5: Solve for x
    x = 192,561,292,161.20/406,058.90
  6. Step 6: Final answer
    x = 474,220.10

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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.