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Finding the Fourth Proportional to 548,030.40, 822,045.60 and 423,614.40

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Solution

The fourth proportional to 548,030.40, 822,045.60 and 423,614.40 is: 635,421.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,030.40 : 822,045.60 = 423,614.40 : x
  2. Step 2: Convert to fraction form
    548,030.40/822,045.60 = 423,614.40/x
  3. Step 3: Cross multiply
    548,030.40x = 822,045.60 × 423,614.40
  4. Step 4: Simplify right side
    548,030.40x = 348,230,353,616.64
  5. Step 5: Solve for x
    x = 348,230,353,616.64/548,030.40
  6. Step 6: Final answer
    x = 635,421.60

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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.