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Finding the Fourth Proportional to 370,624.51, 511,712.89 and 234,779.01

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Solution

The fourth proportional to 370,624.51, 511,712.89 and 234,779.01 is: 324,154.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,624.51 : 511,712.89 = 234,779.01 : x
  2. Step 2: Convert to fraction form
    370,624.51/511,712.89 = 234,779.01/x
  3. Step 3: Cross multiply
    370,624.51x = 511,712.89 × 234,779.01
  4. Step 4: Simplify right side
    370,624.51x = 120,139,444,533.20
  5. Step 5: Solve for x
    x = 120,139,444,533.20/370,624.51
  6. Step 6: Final answer
    x = 324,154.07

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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.