Home / 638,547.54-881,201.57-352,077.81

Finding the Fourth Proportional to 638,547.54, 881,201.57 and 352,077.81

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Solution

The fourth proportional to 638,547.54, 881,201.57 and 352,077.81 is: 485,870.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,547.54 : 881,201.57 = 352,077.81 : x
  2. Step 2: Convert to fraction form
    638,547.54/881,201.57 = 352,077.81/x
  3. Step 3: Cross multiply
    638,547.54x = 881,201.57 × 352,077.81
  4. Step 4: Simplify right side
    638,547.54x = 310,251,513,869.27
  5. Step 5: Solve for x
    x = 310,251,513,869.27/638,547.54
  6. Step 6: Final answer
    x = 485,870.66

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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.