Home / 623,928.12-861,021-352,053.66

Finding the Fourth Proportional to 623,928.12, 861,021 and 352,053.66

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Solution

The fourth proportional to 623,928.12, 861,021 and 352,053.66 is: 485,834.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,928.12 : 861,021 = 352,053.66 : x
  2. Step 2: Convert to fraction form
    623,928.12/861,021 = 352,053.66/x
  3. Step 3: Cross multiply
    623,928.12x = 861,021 × 352,053.66
  4. Step 4: Simplify right side
    623,928.12x = 303,125,594,386.86
  5. Step 5: Solve for x
    x = 303,125,594,386.86/623,928.12
  6. Step 6: Final answer
    x = 485,834.16

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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.