Home / 440,186.16-607,459.38-258,905.70

Finding the Fourth Proportional to 440,186.16, 607,459.38 and 258,905.70

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Solution

The fourth proportional to 440,186.16, 607,459.38 and 258,905.70 is: 357,291.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,186.16 : 607,459.38 = 258,905.70 : x
  2. Step 2: Convert to fraction form
    440,186.16/607,459.38 = 258,905.70/x
  3. Step 3: Cross multiply
    440,186.16x = 607,459.38 × 258,905.70
  4. Step 4: Simplify right side
    440,186.16x = 157,274,696,000.47
  5. Step 5: Solve for x
    x = 157,274,696,000.47/440,186.16
  6. Step 6: Final answer
    x = 357,291.32

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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.