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Finding the Fourth Proportional to 468,347.20, 646,320.90 and 253,487.32

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Solution

The fourth proportional to 468,347.20, 646,320.90 and 253,487.32 is: 349,813.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,347.20 : 646,320.90 = 253,487.32 : x
  2. Step 2: Convert to fraction form
    468,347.20/646,320.90 = 253,487.32/x
  3. Step 3: Cross multiply
    468,347.20x = 646,320.90 × 253,487.32
  4. Step 4: Simplify right side
    468,347.20x = 163,834,152,800.99
  5. Step 5: Solve for x
    x = 163,834,152,800.99/468,347.20
  6. Step 6: Final answer
    x = 349,813.46

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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.