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Finding the Fourth Proportional to 415,888.64, 623,398.78 and 301,760.72

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Solution

The fourth proportional to 415,888.64, 623,398.78 and 301,760.72 is: 452,326.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,888.64 : 623,398.78 = 301,760.72 : x
  2. Step 2: Convert to fraction form
    415,888.64/623,398.78 = 301,760.72/x
  3. Step 3: Cross multiply
    415,888.64x = 623,398.78 × 301,760.72
  4. Step 4: Simplify right side
    415,888.64x = 188,117,264,699.92
  5. Step 5: Solve for x
    x = 188,117,264,699.92/415,888.64
  6. Step 6: Final answer
    x = 452,326.05

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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.