Home / 1,130,509.71-1,560,085.38-621,201.15

Finding the Fourth Proportional to 1,130,509.71, 1,560,085.38 and 621,201.15

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Solution

The fourth proportional to 1,130,509.71, 1,560,085.38 and 621,201.15 is: 857,247.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,509.71 : 1,560,085.38 = 621,201.15 : x
  2. Step 2: Convert to fraction form
    1,130,509.71/1,560,085.38 = 621,201.15/x
  3. Step 3: Cross multiply
    1,130,509.71x = 1,560,085.38 × 621,201.15
  4. Step 4: Simplify right side
    1,130,509.71x = 969,126,832,154.19
  5. Step 5: Solve for x
    x = 969,126,832,154.19/1,130,509.71
  6. Step 6: Final answer
    x = 857,247.69

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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.