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Finding the Fourth Proportional to 653,597.61, 901,945.05 and 363,208.20

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Solution

The fourth proportional to 653,597.61, 901,945.05 and 363,208.20 is: 501,216.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,597.61 : 901,945.05 = 363,208.20 : x
  2. Step 2: Convert to fraction form
    653,597.61/901,945.05 = 363,208.20/x
  3. Step 3: Cross multiply
    653,597.61x = 901,945.05 × 363,208.20
  4. Step 4: Simplify right side
    653,597.61x = 327,593,838,109.41
  5. Step 5: Solve for x
    x = 327,593,838,109.41/653,597.61
  6. Step 6: Final answer
    x = 501,216.40

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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.