Home / 915,850.17-1,263,854.43-507,886.20

Finding the Fourth Proportional to 915,850.17, 1,263,854.43 and 507,886.20

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Solution

The fourth proportional to 915,850.17, 1,263,854.43 and 507,886.20 is: 700,872.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,850.17 : 1,263,854.43 = 507,886.20 : x
  2. Step 2: Convert to fraction form
    915,850.17/1,263,854.43 = 507,886.20/x
  3. Step 3: Cross multiply
    915,850.17x = 1,263,854.43 × 507,886.20
  4. Step 4: Simplify right side
    915,850.17x = 641,894,223,805.87
  5. Step 5: Solve for x
    x = 641,894,223,805.87/915,850.17
  6. Step 6: Final answer
    x = 700,872.53

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Double scale
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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.