Home / 897,162.89-1,238,276.97-515,400.17

Finding the Fourth Proportional to 897,162.89, 1,238,276.97 and 515,400.17

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Solution

The fourth proportional to 897,162.89, 1,238,276.97 and 515,400.17 is: 711,362.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,162.89 : 1,238,276.97 = 515,400.17 : x
  2. Step 2: Convert to fraction form
    897,162.89/1,238,276.97 = 515,400.17/x
  3. Step 3: Cross multiply
    897,162.89x = 1,238,276.97 × 515,400.17
  4. Step 4: Simplify right side
    897,162.89x = 638,208,154,653.70
  5. Step 5: Solve for x
    x = 638,208,154,653.70/897,162.89
  6. Step 6: Final answer
    x = 711,362.64

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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.