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Finding the Fourth Proportional to 566,798.40, 782,182.62 and 308,675.90

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Solution

The fourth proportional to 566,798.40, 782,182.62 and 308,675.90 is: 425,973.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,798.40 : 782,182.62 = 308,675.90 : x
  2. Step 2: Convert to fraction form
    566,798.40/782,182.62 = 308,675.90/x
  3. Step 3: Cross multiply
    566,798.40x = 782,182.62 × 308,675.90
  4. Step 4: Simplify right side
    566,798.40x = 241,440,920,281.95
  5. Step 5: Solve for x
    x = 241,440,920,281.95/566,798.40
  6. Step 6: Final answer
    x = 425,973.19

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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.