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Finding the Fourth Proportional to 637,906.90, 956,860.35 and 536,430.10

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Solution

The fourth proportional to 637,906.90, 956,860.35 and 536,430.10 is: 804,645.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,906.90 : 956,860.35 = 536,430.10 : x
  2. Step 2: Convert to fraction form
    637,906.90/956,860.35 = 536,430.10/x
  3. Step 3: Cross multiply
    637,906.90x = 956,860.35 × 536,430.10
  4. Step 4: Simplify right side
    637,906.90x = 513,288,693,236.54
  5. Step 5: Solve for x
    x = 513,288,693,236.54/637,906.90
  6. Step 6: Final answer
    x = 804,645.15

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.