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Finding the Fourth Proportional to 349,591.74, 524,421.69 and 139,180.38

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Solution

The fourth proportional to 349,591.74, 524,421.69 and 139,180.38 is: 208,784.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,591.74 : 524,421.69 = 139,180.38 : x
  2. Step 2: Convert to fraction form
    349,591.74/524,421.69 = 139,180.38/x
  3. Step 3: Cross multiply
    349,591.74x = 524,421.69 × 139,180.38
  4. Step 4: Simplify right side
    349,591.74x = 72,989,210,094.44
  5. Step 5: Solve for x
    x = 72,989,210,094.44/349,591.74
  6. Step 6: Final answer
    x = 208,784.14

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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.