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Finding the Fourth Proportional to 439,064.40, 657,041.40 and 299,096.40

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Solution

The fourth proportional to 439,064.40, 657,041.40 and 299,096.40 is: 447,585.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,064.40 : 657,041.40 = 299,096.40 : x
  2. Step 2: Convert to fraction form
    439,064.40/657,041.40 = 299,096.40/x
  3. Step 3: Cross multiply
    439,064.40x = 657,041.40 × 299,096.40
  4. Step 4: Simplify right side
    439,064.40x = 196,518,717,390.96
  5. Step 5: Solve for x
    x = 196,518,717,390.96/439,064.40
  6. Step 6: Final answer
    x = 447,585.18

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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.