Home / 497,559.15-686,631.83-282,699.50

Finding the Fourth Proportional to 497,559.15, 686,631.83 and 282,699.50

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Solution

The fourth proportional to 497,559.15, 686,631.83 and 282,699.50 is: 390,125.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,559.15 : 686,631.83 = 282,699.50 : x
  2. Step 2: Convert to fraction form
    497,559.15/686,631.83 = 282,699.50/x
  3. Step 3: Cross multiply
    497,559.15x = 686,631.83 × 282,699.50
  4. Step 4: Simplify right side
    497,559.15x = 194,110,470,178.43
  5. Step 5: Solve for x
    x = 194,110,470,178.43/497,559.15
  6. Step 6: Final answer
    x = 390,125.42

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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.