Home / 830,640.51-1,146,284.40-448,667.28

Finding the Fourth Proportional to 830,640.51, 1,146,284.40 and 448,667.28

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Solution

The fourth proportional to 830,640.51, 1,146,284.40 and 448,667.28 is: 619,161.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,640.51 : 1,146,284.40 = 448,667.28 : x
  2. Step 2: Convert to fraction form
    830,640.51/1,146,284.40 = 448,667.28/x
  3. Step 3: Cross multiply
    830,640.51x = 1,146,284.40 × 448,667.28
  4. Step 4: Simplify right side
    830,640.51x = 514,300,303,854.43
  5. Step 5: Solve for x
    x = 514,300,303,854.43/830,640.51
  6. Step 6: Final answer
    x = 619,161.11

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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.