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Finding the Fourth Proportional to 910,486.80, 1,365,730.20 and 341,866.80

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Solution

The fourth proportional to 910,486.80, 1,365,730.20 and 341,866.80 is: 512,800.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,486.80 : 1,365,730.20 = 341,866.80 : x
  2. Step 2: Convert to fraction form
    910,486.80/1,365,730.20 = 341,866.80/x
  3. Step 3: Cross multiply
    910,486.80x = 1,365,730.20 × 341,866.80
  4. Step 4: Simplify right side
    910,486.80x = 466,897,813,137.36
  5. Step 5: Solve for x
    x = 466,897,813,137.36/910,486.80
  6. Step 6: Final answer
    x = 512,800.20

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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.