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Finding the Fourth Proportional to 262,779.35, 392,729.01 and 191,851.37

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Solution

The fourth proportional to 262,779.35, 392,729.01 and 191,851.37 is: 286,725.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,779.35 : 392,729.01 = 191,851.37 : x
  2. Step 2: Convert to fraction form
    262,779.35/392,729.01 = 191,851.37/x
  3. Step 3: Cross multiply
    262,779.35x = 392,729.01 × 191,851.37
  4. Step 4: Simplify right side
    262,779.35x = 75,345,596,643.60
  5. Step 5: Solve for x
    x = 75,345,596,643.60/262,779.35
  6. Step 6: Final answer
    x = 286,725.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.