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Finding the Fourth Proportional to 634,308.83, 874,499.39 and 503,919.13

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Solution

The fourth proportional to 634,308.83, 874,499.39 and 503,919.13 is: 694,735.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,308.83 : 874,499.39 = 503,919.13 : x
  2. Step 2: Convert to fraction form
    634,308.83/874,499.39 = 503,919.13/x
  3. Step 3: Cross multiply
    634,308.83x = 874,499.39 × 503,919.13
  4. Step 4: Simplify right side
    634,308.83x = 440,676,967,088.49
  5. Step 5: Solve for x
    x = 440,676,967,088.49/634,308.83
  6. Step 6: Final answer
    x = 694,735.66

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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.