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Finding the Fourth Proportional to 557,330.73, 769,435.20 and 366,897.69

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Solution

The fourth proportional to 557,330.73, 769,435.20 and 366,897.69 is: 506,528.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,330.73 : 769,435.20 = 366,897.69 : x
  2. Step 2: Convert to fraction form
    557,330.73/769,435.20 = 366,897.69/x
  3. Step 3: Cross multiply
    557,330.73x = 769,435.20 × 366,897.69
  4. Step 4: Simplify right side
    557,330.73x = 282,303,997,484.69
  5. Step 5: Solve for x
    x = 282,303,997,484.69/557,330.73
  6. Step 6: Final answer
    x = 506,528.68

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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.