Home / 623,914.09-861,001.45-337,434.18

Finding the Fourth Proportional to 623,914.09, 861,001.45 and 337,434.18

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Solution

The fourth proportional to 623,914.09, 861,001.45 and 337,434.18 is: 465,659.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,914.09 : 861,001.45 = 337,434.18 : x
  2. Step 2: Convert to fraction form
    623,914.09/861,001.45 = 337,434.18/x
  3. Step 3: Cross multiply
    623,914.09x = 861,001.45 × 337,434.18
  4. Step 4: Simplify right side
    623,914.09x = 290,531,318,259.56
  5. Step 5: Solve for x
    x = 290,531,318,259.56/623,914.09
  6. Step 6: Final answer
    x = 465,659.17

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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.