Home / 877,102.26-1,210,435.89-495,142.26

Finding the Fourth Proportional to 877,102.26, 1,210,435.89 and 495,142.26

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Solution

The fourth proportional to 877,102.26, 1,210,435.89 and 495,142.26 is: 683,315.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,102.26 : 1,210,435.89 = 495,142.26 : x
  2. Step 2: Convert to fraction form
    877,102.26/1,210,435.89 = 495,142.26/x
  3. Step 3: Cross multiply
    877,102.26x = 1,210,435.89 × 495,142.26
  4. Step 4: Simplify right side
    877,102.26x = 599,337,962,159.71
  5. Step 5: Solve for x
    x = 599,337,962,159.71/877,102.26
  6. Step 6: Final answer
    x = 683,315.95

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Double scale
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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.