Home / 822,161.60-1,232,320.80-348,766.40

Finding the Fourth Proportional to 822,161.60, 1,232,320.80 and 348,766.40

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Solution

The fourth proportional to 822,161.60, 1,232,320.80 and 348,766.40 is: 522,758.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,161.60 : 1,232,320.80 = 348,766.40 : x
  2. Step 2: Convert to fraction form
    822,161.60/1,232,320.80 = 348,766.40/x
  3. Step 3: Cross multiply
    822,161.60x = 1,232,320.80 × 348,766.40
  4. Step 4: Simplify right side
    822,161.60x = 429,792,089,061.12
  5. Step 5: Solve for x
    x = 429,792,089,061.12/822,161.60
  6. Step 6: Final answer
    x = 522,758.65

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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.