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Finding the Fourth Proportional to 543,693.67, 816,038.73 and 291,259.19

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Solution

The fourth proportional to 543,693.67, 816,038.73 and 291,259.19 is: 437,155.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,693.67 : 816,038.73 = 291,259.19 : x
  2. Step 2: Convert to fraction form
    543,693.67/816,038.73 = 291,259.19/x
  3. Step 3: Cross multiply
    543,693.67x = 816,038.73 × 291,259.19
  4. Step 4: Simplify right side
    543,693.67x = 237,678,780,729.36
  5. Step 5: Solve for x
    x = 237,678,780,729.36/543,693.67
  6. Step 6: Final answer
    x = 437,155.69

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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.