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Finding the Fourth Proportional to 626,392.31, 864,813.14 and 430,496.20

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Solution

The fourth proportional to 626,392.31, 864,813.14 and 430,496.20 is: 594,354.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,392.31 : 864,813.14 = 430,496.20 : x
  2. Step 2: Convert to fraction form
    626,392.31/864,813.14 = 430,496.20/x
  3. Step 3: Cross multiply
    626,392.31x = 864,813.14 × 430,496.20
  4. Step 4: Simplify right side
    626,392.31x = 372,298,771,022.96
  5. Step 5: Solve for x
    x = 372,298,771,022.96/626,392.31
  6. Step 6: Final answer
    x = 594,354.00

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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.