Home / 885,139.60-1,328,141.40-411,581.20

Finding the Fourth Proportional to 885,139.60, 1,328,141.40 and 411,581.20

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Solution

The fourth proportional to 885,139.60, 1,328,141.40 and 411,581.20 is: 617,572.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,139.60 : 1,328,141.40 = 411,581.20 : x
  2. Step 2: Convert to fraction form
    885,139.60/1,328,141.40 = 411,581.20/x
  3. Step 3: Cross multiply
    885,139.60x = 1,328,141.40 × 411,581.20
  4. Step 4: Simplify right side
    885,139.60x = 546,638,031,181.68
  5. Step 5: Solve for x
    x = 546,638,031,181.68/885,139.60
  6. Step 6: Final answer
    x = 617,572.68

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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.