Home / 821,390.58-1,133,406.95-458,768.16

Finding the Fourth Proportional to 821,390.58, 1,133,406.95 and 458,768.16

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Solution

The fourth proportional to 821,390.58, 1,133,406.95 and 458,768.16 is: 633,037.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,390.58 : 1,133,406.95 = 458,768.16 : x
  2. Step 2: Convert to fraction form
    821,390.58/1,133,406.95 = 458,768.16/x
  3. Step 3: Cross multiply
    821,390.58x = 1,133,406.95 × 458,768.16
  4. Step 4: Simplify right side
    821,390.58x = 519,971,018,688.87
  5. Step 5: Solve for x
    x = 519,971,018,688.87/821,390.58
  6. Step 6: Final answer
    x = 633,037.47

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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.