Home / 816,005.80-1,126,065.54-453,420.28

Finding the Fourth Proportional to 816,005.80, 1,126,065.54 and 453,420.28

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Solution

The fourth proportional to 816,005.80, 1,126,065.54 and 453,420.28 is: 625,707.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,005.80 : 1,126,065.54 = 453,420.28 : x
  2. Step 2: Convert to fraction form
    816,005.80/1,126,065.54 = 453,420.28/x
  3. Step 3: Cross multiply
    816,005.80x = 1,126,065.54 × 453,420.28
  4. Step 4: Simplify right side
    816,005.80x = 510,580,952,445.15
  5. Step 5: Solve for x
    x = 510,580,952,445.15/816,005.80
  6. Step 6: Final answer
    x = 625,707.50

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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.