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Finding the Fourth Proportional to 468,205.08, 646,118.16 and 253,340.40

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Solution

The fourth proportional to 468,205.08, 646,118.16 and 253,340.40 is: 349,607.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,205.08 : 646,118.16 = 253,340.40 : x
  2. Step 2: Convert to fraction form
    468,205.08/646,118.16 = 253,340.40/x
  3. Step 3: Cross multiply
    468,205.08x = 646,118.16 × 253,340.40
  4. Step 4: Simplify right side
    468,205.08x = 163,687,833,101.66
  5. Step 5: Solve for x
    x = 163,687,833,101.66/468,205.08
  6. Step 6: Final answer
    x = 349,607.13

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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.