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Finding the Fourth Proportional to 590,988.40, 886,482.60 and 486,012.40

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Solution

The fourth proportional to 590,988.40, 886,482.60 and 486,012.40 is: 729,018.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,988.40 : 886,482.60 = 486,012.40 : x
  2. Step 2: Convert to fraction form
    590,988.40/886,482.60 = 486,012.40/x
  3. Step 3: Cross multiply
    590,988.40x = 886,482.60 × 486,012.40
  4. Step 4: Simplify right side
    590,988.40x = 430,841,535,984.24
  5. Step 5: Solve for x
    x = 430,841,535,984.24/590,988.40
  6. Step 6: Final answer
    x = 729,018.60

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Similar ratio
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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.