Home / 910,070.26-1,255,895.47-502,171.78

Finding the Fourth Proportional to 910,070.26, 1,255,895.47 and 502,171.78

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Solution

The fourth proportional to 910,070.26, 1,255,895.47 and 502,171.78 is: 692,996.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,070.26 : 1,255,895.47 = 502,171.78 : x
  2. Step 2: Convert to fraction form
    910,070.26/1,255,895.47 = 502,171.78/x
  3. Step 3: Cross multiply
    910,070.26x = 1,255,895.47 × 502,171.78
  4. Step 4: Simplify right side
    910,070.26x = 630,675,268,010.11
  5. Step 5: Solve for x
    x = 630,675,268,010.11/910,070.26
  6. Step 6: Final answer
    x = 692,996.24

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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.