Home / 645,336.30-968,004.45-577,685.10

Finding the Fourth Proportional to 645,336.30, 968,004.45 and 577,685.10

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Solution

The fourth proportional to 645,336.30, 968,004.45 and 577,685.10 is: 866,527.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,336.30 : 968,004.45 = 577,685.10 : x
  2. Step 2: Convert to fraction form
    645,336.30/968,004.45 = 577,685.10/x
  3. Step 3: Cross multiply
    645,336.30x = 968,004.45 × 577,685.10
  4. Step 4: Simplify right side
    645,336.30x = 559,201,747,498.70
  5. Step 5: Solve for x
    x = 559,201,747,498.70/645,336.30
  6. Step 6: Final answer
    x = 866,527.65

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Double scale
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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.