Home / 915,437.83-1,373,423.36-409,880.57

Finding the Fourth Proportional to 915,437.83, 1,373,423.36 and 409,880.57

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Solution

The fourth proportional to 915,437.83, 1,373,423.36 and 409,880.57 is: 614,940.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,437.83 : 1,373,423.36 = 409,880.57 : x
  2. Step 2: Convert to fraction form
    915,437.83/1,373,423.36 = 409,880.57/x
  3. Step 3: Cross multiply
    915,437.83x = 1,373,423.36 × 409,880.57
  4. Step 4: Simplify right side
    915,437.83x = 562,939,542,781.00
  5. Step 5: Solve for x
    x = 562,939,542,781.00/915,437.83
  6. Step 6: Final answer
    x = 614,940.23

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.