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Finding the Fourth Proportional to 456,803.09, 630,243.35 and 265,779.58

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Solution

The fourth proportional to 456,803.09, 630,243.35 and 265,779.58 is: 366,691.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,803.09 : 630,243.35 = 265,779.58 : x
  2. Step 2: Convert to fraction form
    456,803.09/630,243.35 = 265,779.58/x
  3. Step 3: Cross multiply
    456,803.09x = 630,243.35 × 265,779.58
  4. Step 4: Simplify right side
    456,803.09x = 167,505,812,860.79
  5. Step 5: Solve for x
    x = 167,505,812,860.79/456,803.09
  6. Step 6: Final answer
    x = 366,691.51

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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.