Home / 521,220.93-719,208.36-291,766.29

Finding the Fourth Proportional to 521,220.93, 719,208.36 and 291,766.29

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Solution

The fourth proportional to 521,220.93, 719,208.36 and 291,766.29 is: 402,594.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,220.93 : 719,208.36 = 291,766.29 : x
  2. Step 2: Convert to fraction form
    521,220.93/719,208.36 = 291,766.29/x
  3. Step 3: Cross multiply
    521,220.93x = 719,208.36 × 291,766.29
  4. Step 4: Simplify right side
    521,220.93x = 209,840,754,934.18
  5. Step 5: Solve for x
    x = 209,840,754,934.18/521,220.93
  6. Step 6: Final answer
    x = 402,594.64

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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.