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Finding the Fourth Proportional to 483,207.10, 724,810.65 and 405,058.30

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Solution

The fourth proportional to 483,207.10, 724,810.65 and 405,058.30 is: 607,587.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,207.10 : 724,810.65 = 405,058.30 : x
  2. Step 2: Convert to fraction form
    483,207.10/724,810.65 = 405,058.30/x
  3. Step 3: Cross multiply
    483,207.10x = 724,810.65 × 405,058.30
  4. Step 4: Simplify right side
    483,207.10x = 293,590,569,710.90
  5. Step 5: Solve for x
    x = 293,590,569,710.90/483,207.10
  6. Step 6: Final answer
    x = 607,587.45

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Similar ratio
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1.5x scale

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.