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Finding the Fourth Proportional to 590,618.40, 814,770 and 386,579.52

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Solution

The fourth proportional to 590,618.40, 814,770 and 386,579.52 is: 533,294.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,618.40 : 814,770 = 386,579.52 : x
  2. Step 2: Convert to fraction form
    590,618.40/814,770 = 386,579.52/x
  3. Step 3: Cross multiply
    590,618.40x = 814,770 × 386,579.52
  4. Step 4: Simplify right side
    590,618.40x = 314,973,395,510.40
  5. Step 5: Solve for x
    x = 314,973,395,510.40/590,618.40
  6. Step 6: Final answer
    x = 533,294.25

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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.