Home / 915,085.45-1,262,827.26-507,196.28

Finding the Fourth Proportional to 915,085.45, 1,262,827.26 and 507,196.28

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Solution

The fourth proportional to 915,085.45, 1,262,827.26 and 507,196.28 is: 699,936.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,085.45 : 1,262,827.26 = 507,196.28 : x
  2. Step 2: Convert to fraction form
    915,085.45/1,262,827.26 = 507,196.28/x
  3. Step 3: Cross multiply
    915,085.45x = 1,262,827.26 × 507,196.28
  4. Step 4: Simplify right side
    915,085.45x = 640,501,291,711.66
  5. Step 5: Solve for x
    x = 640,501,291,711.66/915,085.45
  6. Step 6: Final answer
    x = 699,936.05

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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.