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Finding the Fourth Proportional to 438,044.75, 604,501.76 and 236,840.75

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Solution

The fourth proportional to 438,044.75, 604,501.76 and 236,840.75 is: 326,840.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,044.75 : 604,501.76 = 236,840.75 : x
  2. Step 2: Convert to fraction form
    438,044.75/604,501.76 = 236,840.75/x
  3. Step 3: Cross multiply
    438,044.75x = 604,501.76 × 236,840.75
  4. Step 4: Simplify right side
    438,044.75x = 143,170,650,214.72
  5. Step 5: Solve for x
    x = 143,170,650,214.72/438,044.75
  6. Step 6: Final answer
    x = 326,840.24

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Half scale
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Double scale
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1.5x scale

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.