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Finding the Fourth Proportional to 541,643.51, 747,458.90 and 299,920.88

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Solution

The fourth proportional to 541,643.51, 747,458.90 and 299,920.88 is: 413,885.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,643.51 : 747,458.90 = 299,920.88 : x
  2. Step 2: Convert to fraction form
    541,643.51/747,458.90 = 299,920.88/x
  3. Step 3: Cross multiply
    541,643.51x = 747,458.90 × 299,920.88
  4. Step 4: Simplify right side
    541,643.51x = 224,178,533,670.28
  5. Step 5: Solve for x
    x = 224,178,533,670.28/541,643.51
  6. Step 6: Final answer
    x = 413,885.76

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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.