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Finding the Fourth Proportional to 611,173.52, 843,329.57 and 339,243.45

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Solution

The fourth proportional to 611,173.52, 843,329.57 and 339,243.45 is: 468,106.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,173.52 : 843,329.57 = 339,243.45 : x
  2. Step 2: Convert to fraction form
    611,173.52/843,329.57 = 339,243.45/x
  3. Step 3: Cross multiply
    611,173.52x = 843,329.57 × 339,243.45
  4. Step 4: Simplify right side
    611,173.52x = 286,094,031,117.60
  5. Step 5: Solve for x
    x = 286,094,031,117.60/611,173.52
  6. Step 6: Final answer
    x = 468,106.07

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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.