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Finding the Fourth Proportional to 623,996.69, 935,420.95 and 339,271.16

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Solution

The fourth proportional to 623,996.69, 935,420.95 and 339,271.16 is: 508,594.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,996.69 : 935,420.95 = 339,271.16 : x
  2. Step 2: Convert to fraction form
    623,996.69/935,420.95 = 339,271.16/x
  3. Step 3: Cross multiply
    623,996.69x = 935,420.95 × 339,271.16
  4. Step 4: Simplify right side
    623,996.69x = 317,361,349,098.45
  5. Step 5: Solve for x
    x = 317,361,349,098.45/623,996.69
  6. Step 6: Final answer
    x = 508,594.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.