Home / 816,411.16-1,126,660.80-448,903.72

Finding the Fourth Proportional to 816,411.16, 1,126,660.80 and 448,903.72

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Solution

The fourth proportional to 816,411.16, 1,126,660.80 and 448,903.72 is: 619,494.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,411.16 : 1,126,660.80 = 448,903.72 : x
  2. Step 2: Convert to fraction form
    816,411.16/1,126,660.80 = 448,903.72/x
  3. Step 3: Cross multiply
    816,411.16x = 1,126,660.80 × 448,903.72
  4. Step 4: Simplify right side
    816,411.16x = 505,762,224,298.18
  5. Step 5: Solve for x
    x = 505,762,224,298.18/816,411.16
  6. Step 6: Final answer
    x = 619,494.50

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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.