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Finding the Fourth Proportional to 360,423.36, 497,421.36 and 207,467.28

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Solution

The fourth proportional to 360,423.36, 497,421.36 and 207,467.28 is: 286,326.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,423.36 : 497,421.36 = 207,467.28 : x
  2. Step 2: Convert to fraction form
    360,423.36/497,421.36 = 207,467.28/x
  3. Step 3: Cross multiply
    360,423.36x = 497,421.36 × 207,467.28
  4. Step 4: Simplify right side
    360,423.36x = 103,198,656,573.10
  5. Step 5: Solve for x
    x = 103,198,656,573.10/360,423.36
  6. Step 6: Final answer
    x = 286,326.22

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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.