Home / 1,284,790.80-1,773,025.56-711,840

Finding the Fourth Proportional to 1,284,790.80, 1,773,025.56 and 711,840

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Solution

The fourth proportional to 1,284,790.80, 1,773,025.56 and 711,840 is: 982,347.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,790.80 : 1,773,025.56 = 711,840 : x
  2. Step 2: Convert to fraction form
    1,284,790.80/1,773,025.56 = 711,840/x
  3. Step 3: Cross multiply
    1,284,790.80x = 1,773,025.56 × 711,840
  4. Step 4: Simplify right side
    1,284,790.80x = 1,262,110,514,630.40
  5. Step 5: Solve for x
    x = 1,262,110,514,630.40/1,284,790.80
  6. Step 6: Final answer
    x = 982,347.10

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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.