Home / 1,130,127.36-1,559,306.88-640,101.12

Finding the Fourth Proportional to 1,130,127.36, 1,559,306.88 and 640,101.12

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Solution

The fourth proportional to 1,130,127.36, 1,559,306.88 and 640,101.12 is: 883,187.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,127.36 : 1,559,306.88 = 640,101.12 : x
  2. Step 2: Convert to fraction form
    1,130,127.36/1,559,306.88 = 640,101.12/x
  3. Step 3: Cross multiply
    1,130,127.36x = 1,559,306.88 × 640,101.12
  4. Step 4: Simplify right side
    1,130,127.36x = 998,114,080,311.71
  5. Step 5: Solve for x
    x = 998,114,080,311.71/1,130,127.36
  6. Step 6: Final answer
    x = 883,187.25

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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.