Home / 440,458.78-607,822.93-256,685.65

Finding the Fourth Proportional to 440,458.78, 607,822.93 and 256,685.65

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Solution

The fourth proportional to 440,458.78, 607,822.93 and 256,685.65 is: 354,220.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,458.78 : 607,822.93 = 256,685.65 : x
  2. Step 2: Convert to fraction form
    440,458.78/607,822.93 = 256,685.65/x
  3. Step 3: Cross multiply
    440,458.78x = 607,822.93 × 256,685.65
  4. Step 4: Simplify right side
    440,458.78x = 156,019,423,871.96
  5. Step 5: Solve for x
    x = 156,019,423,871.96/440,458.78
  6. Step 6: Final answer
    x = 354,220.26

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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.