Home / 530,119.31-731,547.99-288,395.73

Finding the Fourth Proportional to 530,119.31, 731,547.99 and 288,395.73

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Solution

The fourth proportional to 530,119.31, 731,547.99 and 288,395.73 is: 397,977.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,119.31 : 731,547.99 = 288,395.73 : x
  2. Step 2: Convert to fraction form
    530,119.31/731,547.99 = 288,395.73/x
  3. Step 3: Cross multiply
    530,119.31x = 731,547.99 × 288,395.73
  4. Step 4: Simplify right side
    530,119.31x = 210,975,316,606.08
  5. Step 5: Solve for x
    x = 210,975,316,606.08/530,119.31
  6. Step 6: Final answer
    x = 397,977.05

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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.