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Finding the Fourth Proportional to 707,565.30, 974,779.41 and 492,335.22

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Solution

The fourth proportional to 707,565.30, 974,779.41 and 492,335.22 is: 678,267.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,565.30 : 974,779.41 = 492,335.22 : x
  2. Step 2: Convert to fraction form
    707,565.30/974,779.41 = 492,335.22/x
  3. Step 3: Cross multiply
    707,565.30x = 974,779.41 × 492,335.22
  4. Step 4: Simplify right side
    707,565.30x = 479,918,235,273.82
  5. Step 5: Solve for x
    x = 479,918,235,273.82/707,565.30
  6. Step 6: Final answer
    x = 678,267.06

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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.