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Finding the Fourth Proportional to 624,341.30, 935,129.55 and 513,749.30

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Solution

The fourth proportional to 624,341.30, 935,129.55 and 513,749.30 is: 769,486.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,341.30 : 935,129.55 = 513,749.30 : x
  2. Step 2: Convert to fraction form
    624,341.30/935,129.55 = 513,749.30/x
  3. Step 3: Cross multiply
    624,341.30x = 935,129.55 × 513,749.30
  4. Step 4: Simplify right side
    624,341.30x = 480,422,151,721.82
  5. Step 5: Solve for x
    x = 480,422,151,721.82/624,341.30
  6. Step 6: Final answer
    x = 769,486.42

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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.