Home / 541,985.04-812,684.34-430,383.24

Finding the Fourth Proportional to 541,985.04, 812,684.34 and 430,383.24

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Solution

The fourth proportional to 541,985.04, 812,684.34 and 430,383.24 is: 645,342.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,985.04 : 812,684.34 = 430,383.24 : x
  2. Step 2: Convert to fraction form
    541,985.04/812,684.34 = 430,383.24/x
  3. Step 3: Cross multiply
    541,985.04x = 812,684.34 × 430,383.24
  4. Step 4: Simplify right side
    541,985.04x = 349,765,719,346.46
  5. Step 5: Solve for x
    x = 349,765,719,346.46/541,985.04
  6. Step 6: Final answer
    x = 645,342.02

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Double scale
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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.