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Finding the Fourth Proportional to 577,657.40, 865,794.90 and 297,030.20

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Solution

The fourth proportional to 577,657.40, 865,794.90 and 297,030.20 is: 445,189.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,657.40 : 865,794.90 = 297,030.20 : x
  2. Step 2: Convert to fraction form
    577,657.40/865,794.90 = 297,030.20/x
  3. Step 3: Cross multiply
    577,657.40x = 865,794.90 × 297,030.20
  4. Step 4: Simplify right side
    577,657.40x = 257,167,232,305.98
  5. Step 5: Solve for x
    x = 257,167,232,305.98/577,657.40
  6. Step 6: Final answer
    x = 445,189.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.