Home / 979,043.28-1,351,103.00-549,355.19

Finding the Fourth Proportional to 979,043.28, 1,351,103.00 and 549,355.19

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Solution

The fourth proportional to 979,043.28, 1,351,103.00 and 549,355.19 is: 758,123.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,043.28 : 1,351,103.00 = 549,355.19 : x
  2. Step 2: Convert to fraction form
    979,043.28/1,351,103.00 = 549,355.19/x
  3. Step 3: Cross multiply
    979,043.28x = 1,351,103.00 × 549,355.19
  4. Step 4: Simplify right side
    979,043.28x = 742,235,435,772.28
  5. Step 5: Solve for x
    x = 742,235,435,772.28/979,043.28
  6. Step 6: Final answer
    x = 758,123.21

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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.