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Finding the Fourth Proportional to 543,782.08, 750,117 and 505,294.26

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Solution

The fourth proportional to 543,782.08, 750,117 and 505,294.26 is: 697,025.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,782.08 : 750,117 = 505,294.26 : x
  2. Step 2: Convert to fraction form
    543,782.08/750,117 = 505,294.26/x
  3. Step 3: Cross multiply
    543,782.08x = 750,117 × 505,294.26
  4. Step 4: Simplify right side
    543,782.08x = 379,029,814,428.42
  5. Step 5: Solve for x
    x = 379,029,814,428.42/543,782.08
  6. Step 6: Final answer
    x = 697,025.20

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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.