Home / 1,386,878.01-1,913,854.64-775,035.54

Finding the Fourth Proportional to 1,386,878.01, 1,913,854.64 and 775,035.54

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Solution

The fourth proportional to 1,386,878.01, 1,913,854.64 and 775,035.54 is: 1,069,528.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,878.01 : 1,913,854.64 = 775,035.54 : x
  2. Step 2: Convert to fraction form
    1,386,878.01/1,913,854.64 = 775,035.54/x
  3. Step 3: Cross multiply
    1,386,878.01x = 1,913,854.64 × 775,035.54
  4. Step 4: Simplify right side
    1,386,878.01x = 1,483,305,364,393.91
  5. Step 5: Solve for x
    x = 1,483,305,364,393.91/1,386,878.01
  6. Step 6: Final answer
    x = 1,069,528.36

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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.