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Finding the Fourth Proportional to 884,137.40, 1,326,378.90 and 351,567.80

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Solution

The fourth proportional to 884,137.40, 1,326,378.90 and 351,567.80 is: 527,420.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,137.40 : 1,326,378.90 = 351,567.80 : x
  2. Step 2: Convert to fraction form
    884,137.40/1,326,378.90 = 351,567.80/x
  3. Step 3: Cross multiply
    884,137.40x = 1,326,378.90 × 351,567.80
  4. Step 4: Simplify right side
    884,137.40x = 466,312,111,839.42
  5. Step 5: Solve for x
    x = 466,312,111,839.42/884,137.40
  6. Step 6: Final answer
    x = 527,420.41

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Double scale
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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.