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Finding the Fourth Proportional to 549,563.40, 824,345.10 and 495,325.80

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Solution

The fourth proportional to 549,563.40, 824,345.10 and 495,325.80 is: 742,988.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,563.40 : 824,345.10 = 495,325.80 : x
  2. Step 2: Convert to fraction form
    549,563.40/824,345.10 = 495,325.80/x
  3. Step 3: Cross multiply
    549,563.40x = 824,345.10 × 495,325.80
  4. Step 4: Simplify right side
    549,563.40x = 408,319,396,133.58
  5. Step 5: Solve for x
    x = 408,319,396,133.58/549,563.40
  6. Step 6: Final answer
    x = 742,988.70

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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.