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Finding the Fourth Proportional to 611,127.19, 843,349.17 and 339,197.46

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Solution

The fourth proportional to 611,127.19, 843,349.17 and 339,197.46 is: 468,088.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,127.19 : 843,349.17 = 339,197.46 : x
  2. Step 2: Convert to fraction form
    611,127.19/843,349.17 = 339,197.46/x
  3. Step 3: Cross multiply
    611,127.19x = 843,349.17 × 339,197.46
  4. Step 4: Simplify right side
    611,127.19x = 286,061,892,140.36
  5. Step 5: Solve for x
    x = 286,061,892,140.36/611,127.19
  6. Step 6: Final answer
    x = 468,088.96

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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.