Home / 521,229.02-719,219.31-291,774.38

Finding the Fourth Proportional to 521,229.02, 719,219.31 and 291,774.38

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Solution

The fourth proportional to 521,229.02, 719,219.31 and 291,774.38 is: 402,605.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,229.02 : 719,219.31 = 291,774.38 : x
  2. Step 2: Convert to fraction form
    521,229.02/719,219.31 = 291,774.38/x
  3. Step 3: Cross multiply
    521,229.02x = 719,219.31 × 291,774.38
  4. Step 4: Simplify right side
    521,229.02x = 209,849,768,259.28
  5. Step 5: Solve for x
    x = 209,849,768,259.28/521,229.02
  6. Step 6: Final answer
    x = 402,605.69

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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.