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Finding the Fourth Proportional to 501,697.09, 692,342.45 and 286,841.65

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Solution

The fourth proportional to 501,697.09, 692,342.45 and 286,841.65 is: 395,841.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,697.09 : 692,342.45 = 286,841.65 : x
  2. Step 2: Convert to fraction form
    501,697.09/692,342.45 = 286,841.65/x
  3. Step 3: Cross multiply
    501,697.09x = 692,342.45 × 286,841.65
  4. Step 4: Simplify right side
    501,697.09x = 198,592,651,229.92
  5. Step 5: Solve for x
    x = 198,592,651,229.92/501,697.09
  6. Step 6: Final answer
    x = 395,841.75

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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.