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Finding the Fourth Proportional to 536,834.50, 740,845.79 and 291,835.74

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Solution

The fourth proportional to 536,834.50, 740,845.79 and 291,835.74 is: 402,741.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,834.50 : 740,845.79 = 291,835.74 : x
  2. Step 2: Convert to fraction form
    536,834.50/740,845.79 = 291,835.74/x
  3. Step 3: Cross multiply
    536,834.50x = 740,845.79 × 291,835.74
  4. Step 4: Simplify right side
    536,834.50x = 216,205,279,350.54
  5. Step 5: Solve for x
    x = 216,205,279,350.54/536,834.50
  6. Step 6: Final answer
    x = 402,741.03

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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.