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Finding the Fourth Proportional to 402,482.40, 602,168.40 and 262,514.40

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Solution

The fourth proportional to 402,482.40, 602,168.40 and 262,514.40 is: 392,757.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,482.40 : 602,168.40 = 262,514.40 : x
  2. Step 2: Convert to fraction form
    402,482.40/602,168.40 = 262,514.40/x
  3. Step 3: Cross multiply
    402,482.40x = 602,168.40 × 262,514.40
  4. Step 4: Simplify right side
    402,482.40x = 158,077,876,224.96
  5. Step 5: Solve for x
    x = 158,077,876,224.96/402,482.40
  6. Step 6: Final answer
    x = 392,757.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.