Home / 821,916.16-1,134,240.60-459,339.76

Finding the Fourth Proportional to 821,916.16, 1,134,240.60 and 459,339.76

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Solution

The fourth proportional to 821,916.16, 1,134,240.60 and 459,339.76 is: 633,886.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,916.16 : 1,134,240.60 = 459,339.76 : x
  2. Step 2: Convert to fraction form
    821,916.16/1,134,240.60 = 459,339.76/x
  3. Step 3: Cross multiply
    821,916.16x = 1,134,240.60 × 459,339.76
  4. Step 4: Simplify right side
    821,916.16x = 521,001,804,986.26
  5. Step 5: Solve for x
    x = 521,001,804,986.26/821,916.16
  6. Step 6: Final answer
    x = 633,886.80

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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.