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Finding the Fourth Proportional to 657,698.01, 908,494.65 and 529,120.76

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Solution

The fourth proportional to 657,698.01, 908,494.65 and 529,120.76 is: 730,887.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,698.01 : 908,494.65 = 529,120.76 : x
  2. Step 2: Convert to fraction form
    657,698.01/908,494.65 = 529,120.76/x
  3. Step 3: Cross multiply
    657,698.01x = 908,494.65 × 529,120.76
  4. Step 4: Simplify right side
    657,698.01x = 480,703,379,663.93
  5. Step 5: Solve for x
    x = 480,703,379,663.93/657,698.01
  6. Step 6: Final answer
    x = 730,887.69

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Double scale
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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.