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Finding the Fourth Proportional to 624,924.90, 931,899.83 and 619,241.40

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Solution

The fourth proportional to 624,924.90, 931,899.83 and 619,241.40 is: 923,424.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,924.90 : 931,899.83 = 619,241.40 : x
  2. Step 2: Convert to fraction form
    624,924.90/931,899.83 = 619,241.40/x
  3. Step 3: Cross multiply
    624,924.90x = 931,899.83 × 619,241.40
  4. Step 4: Simplify right side
    624,924.90x = 577,070,952,292.76
  5. Step 5: Solve for x
    x = 577,070,952,292.76/624,924.90
  6. Step 6: Final answer
    x = 923,424.48

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.