Home / 808,784.60-1,115,325.45-627,430.46

Finding the Fourth Proportional to 808,784.60, 1,115,325.45 and 627,430.46

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Solution

The fourth proportional to 808,784.60, 1,115,325.45 and 627,430.46 is: 865,235.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,784.60 : 1,115,325.45 = 627,430.46 : x
  2. Step 2: Convert to fraction form
    808,784.60/1,115,325.45 = 627,430.46/x
  3. Step 3: Cross multiply
    808,784.60x = 1,115,325.45 × 627,430.46
  4. Step 4: Simplify right side
    808,784.60x = 699,789,154,566.58
  5. Step 5: Solve for x
    x = 699,789,154,566.58/808,784.60
  6. Step 6: Final answer
    x = 865,235.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.