Home / 877,104.76-1,210,439.36-495,144.76

Finding the Fourth Proportional to 877,104.76, 1,210,439.36 and 495,144.76

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Solution

The fourth proportional to 877,104.76, 1,210,439.36 and 495,144.76 is: 683,319.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,104.76 : 1,210,439.36 = 495,144.76 : x
  2. Step 2: Convert to fraction form
    877,104.76/1,210,439.36 = 495,144.76/x
  3. Step 3: Cross multiply
    877,104.76x = 1,210,439.36 × 495,144.76
  4. Step 4: Simplify right side
    877,104.76x = 599,342,706,401.75
  5. Step 5: Solve for x
    x = 599,342,706,401.75/877,104.76
  6. Step 6: Final answer
    x = 683,319.41

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Half scale
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Double scale
Find fourth proportional to 877,105.76, 1,210,440.74 and 495,145.76
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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.