Home / 897,639.03-1,238,619.06-515,665.71

Finding the Fourth Proportional to 897,639.03, 1,238,619.06 and 515,665.71

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Solution

The fourth proportional to 897,639.03, 1,238,619.06 and 515,665.71 is: 711,548.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,639.03 : 1,238,619.06 = 515,665.71 : x
  2. Step 2: Convert to fraction form
    897,639.03/1,238,619.06 = 515,665.71/x
  3. Step 3: Cross multiply
    897,639.03x = 1,238,619.06 × 515,665.71
  4. Step 4: Simplify right side
    897,639.03x = 638,713,376,994.43
  5. Step 5: Solve for x
    x = 638,713,376,994.43/897,639.03
  6. Step 6: Final answer
    x = 711,548.13

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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.