Home / 910,066.95-1,256,142.20-528,216.75

Finding the Fourth Proportional to 910,066.95, 1,256,142.20 and 528,216.75

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Solution

The fourth proportional to 910,066.95, 1,256,142.20 and 528,216.75 is: 729,084.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,066.95 : 1,256,142.20 = 528,216.75 : x
  2. Step 2: Convert to fraction form
    910,066.95/1,256,142.20 = 528,216.75/x
  3. Step 3: Cross multiply
    910,066.95x = 1,256,142.20 × 528,216.75
  4. Step 4: Simplify right side
    910,066.95x = 663,515,347,780.77
  5. Step 5: Solve for x
    x = 663,515,347,780.77/910,066.95
  6. Step 6: Final answer
    x = 729,084.11

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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.