Home / 817,043.69-1,127,520.29-459,347.69

Finding the Fourth Proportional to 817,043.69, 1,127,520.29 and 459,347.69

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Solution

The fourth proportional to 817,043.69, 1,127,520.29 and 459,347.69 is: 633,899.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,043.69 : 1,127,520.29 = 459,347.69 : x
  2. Step 2: Convert to fraction form
    817,043.69/1,127,520.29 = 459,347.69/x
  3. Step 3: Cross multiply
    817,043.69x = 1,127,520.29 × 459,347.69
  4. Step 4: Simplify right side
    817,043.69x = 517,923,840,639.63
  5. Step 5: Solve for x
    x = 517,923,840,639.63/817,043.69
  6. Step 6: Final answer
    x = 633,899.81

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Half scale
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Double scale
Find fourth proportional to 817,044.69, 1,127,521.67 and 459,348.69
Similar ratio
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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.