Home / 589,049.40-883,574.10-543,430.20

Finding the Fourth Proportional to 589,049.40, 883,574.10 and 543,430.20

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Solution

The fourth proportional to 589,049.40, 883,574.10 and 543,430.20 is: 815,145.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,049.40 : 883,574.10 = 543,430.20 : x
  2. Step 2: Convert to fraction form
    589,049.40/883,574.10 = 543,430.20/x
  3. Step 3: Cross multiply
    589,049.40x = 883,574.10 × 543,430.20
  4. Step 4: Simplify right side
    589,049.40x = 480,160,849,877.82
  5. Step 5: Solve for x
    x = 480,160,849,877.82/589,049.40
  6. Step 6: Final answer
    x = 815,145.30

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Double scale
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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.