Home / 623,964.11-861,070.64-352,089.63

Finding the Fourth Proportional to 623,964.11, 861,070.64 and 352,089.63

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Solution

The fourth proportional to 623,964.11, 861,070.64 and 352,089.63 is: 485,883.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,964.11 : 861,070.64 = 352,089.63 : x
  2. Step 2: Convert to fraction form
    623,964.11/861,070.64 = 352,089.63/x
  3. Step 3: Cross multiply
    623,964.11x = 861,070.64 × 352,089.63
  4. Step 4: Simplify right side
    623,964.11x = 303,174,041,281.02
  5. Step 5: Solve for x
    x = 303,174,041,281.02/623,964.11
  6. Step 6: Final answer
    x = 485,883.79

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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.