Home / 623,913.10-861,105.95-352,058.07

Finding the Fourth Proportional to 623,913.10, 861,105.95 and 352,058.07

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Solution

The fourth proportional to 623,913.10, 861,105.95 and 352,058.07 is: 485,899.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,913.10 : 861,105.95 = 352,058.07 : x
  2. Step 2: Convert to fraction form
    623,913.10/861,105.95 = 352,058.07/x
  3. Step 3: Cross multiply
    623,913.10x = 861,105.95 × 352,058.07
  4. Step 4: Simplify right side
    623,913.10x = 303,159,298,822.52
  5. Step 5: Solve for x
    x = 303,159,298,822.52/623,913.10
  6. Step 6: Final answer
    x = 485,899.88

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Double scale
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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.