Home / 1,353,095.84-1,866,817.36-780,123.52

Finding the Fourth Proportional to 1,353,095.84, 1,866,817.36 and 780,123.52

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Solution

The fourth proportional to 1,353,095.84, 1,866,817.36 and 780,123.52 is: 1,076,308.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353,095.84 : 1,866,817.36 = 780,123.52 : x
  2. Step 2: Convert to fraction form
    1,353,095.84/1,866,817.36 = 780,123.52/x
  3. Step 3: Cross multiply
    1,353,095.84x = 1,866,817.36 × 780,123.52
  4. Step 4: Simplify right side
    1,353,095.84x = 1,456,348,130,080.31
  5. Step 5: Solve for x
    x = 1,456,348,130,080.31/1,353,095.84
  6. Step 6: Final answer
    x = 1,076,308.19

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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.