Home / 645,461.27-890,924.14-430,600.81

Finding the Fourth Proportional to 645,461.27, 890,924.14 and 430,600.81

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Solution

The fourth proportional to 645,461.27, 890,924.14 and 430,600.81 is: 594,354.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,461.27 : 890,924.14 = 430,600.81 : x
  2. Step 2: Convert to fraction form
    645,461.27/890,924.14 = 430,600.81/x
  3. Step 3: Cross multiply
    645,461.27x = 890,924.14 × 430,600.81
  4. Step 4: Simplify right side
    645,461.27x = 383,632,649,724.93
  5. Step 5: Solve for x
    x = 383,632,649,724.93/645,461.27
  6. Step 6: Final answer
    x = 594,354.25

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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.