Home / 816,957.77-1,126,941.54-490,186.25

Finding the Fourth Proportional to 816,957.77, 1,126,941.54 and 490,186.25

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Solution

The fourth proportional to 816,957.77, 1,126,941.54 and 490,186.25 is: 676,180.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,957.77 : 1,126,941.54 = 490,186.25 : x
  2. Step 2: Convert to fraction form
    816,957.77/1,126,941.54 = 490,186.25/x
  3. Step 3: Cross multiply
    816,957.77x = 1,126,941.54 × 490,186.25
  4. Step 4: Simplify right side
    816,957.77x = 552,411,244,214.95
  5. Step 5: Solve for x
    x = 552,411,244,214.95/816,957.77
  6. Step 6: Final answer
    x = 676,180.91

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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.