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Finding the Fourth Proportional to 364,030.10, 546,045.15 and 257,741.90

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Solution

The fourth proportional to 364,030.10, 546,045.15 and 257,741.90 is: 386,612.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,030.10 : 546,045.15 = 257,741.90 : x
  2. Step 2: Convert to fraction form
    364,030.10/546,045.15 = 257,741.90/x
  3. Step 3: Cross multiply
    364,030.10x = 546,045.15 × 257,741.90
  4. Step 4: Simplify right side
    364,030.10x = 140,738,714,446.79
  5. Step 5: Solve for x
    x = 140,738,714,446.79/364,030.10
  6. Step 6: Final answer
    x = 386,612.85

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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.