Home / 645,184.27-890,098.55-373,201.66

Finding the Fourth Proportional to 645,184.27, 890,098.55 and 373,201.66

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Solution

The fourth proportional to 645,184.27, 890,098.55 and 373,201.66 is: 514,870.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,184.27 : 890,098.55 = 373,201.66 : x
  2. Step 2: Convert to fraction form
    645,184.27/890,098.55 = 373,201.66/x
  3. Step 3: Cross multiply
    645,184.27x = 890,098.55 × 373,201.66
  4. Step 4: Simplify right side
    645,184.27x = 332,186,251,973.10
  5. Step 5: Solve for x
    x = 332,186,251,973.10/645,184.27
  6. Step 6: Final answer
    x = 514,870.36

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Double scale
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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.