Home / 1,016,128.90-1,402,277.19-557,216.17

Finding the Fourth Proportional to 1,016,128.90, 1,402,277.19 and 557,216.17

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Solution

The fourth proportional to 1,016,128.90, 1,402,277.19 and 557,216.17 is: 768,968.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016,128.90 : 1,402,277.19 = 557,216.17 : x
  2. Step 2: Convert to fraction form
    1,016,128.90/1,402,277.19 = 557,216.17/x
  3. Step 3: Cross multiply
    1,016,128.90x = 1,402,277.19 × 557,216.17
  4. Step 4: Simplify right side
    1,016,128.90x = 781,371,525,090.16
  5. Step 5: Solve for x
    x = 781,371,525,090.16/1,016,128.90
  6. Step 6: Final answer
    x = 768,968.90

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Double scale
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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.