Home / 623,911.10-861,103.19-352,056.07

Finding the Fourth Proportional to 623,911.10, 861,103.19 and 352,056.07

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Solution

The fourth proportional to 623,911.10, 861,103.19 and 352,056.07 is: 485,897.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,911.10 : 861,103.19 = 352,056.07 : x
  2. Step 2: Convert to fraction form
    623,911.10/861,103.19 = 352,056.07/x
  3. Step 3: Cross multiply
    623,911.10x = 861,103.19 × 352,056.07
  4. Step 4: Simplify right side
    623,911.10x = 303,156,598,870.07
  5. Step 5: Solve for x
    x = 303,156,598,870.07/623,911.10
  6. Step 6: Final answer
    x = 485,897.11

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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.