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Finding the Fourth Proportional to 612,773.80, 918,176.55 and 577,344.40

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Solution

The fourth proportional to 612,773.80, 918,176.55 and 577,344.40 is: 865,089.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,773.80 : 918,176.55 = 577,344.40 : x
  2. Step 2: Convert to fraction form
    612,773.80/918,176.55 = 577,344.40/x
  3. Step 3: Cross multiply
    612,773.80x = 918,176.55 × 577,344.40
  4. Step 4: Simplify right side
    612,773.80x = 530,104,089,353.82
  5. Step 5: Solve for x
    x = 530,104,089,353.82/612,773.80
  6. Step 6: Final answer
    x = 865,089.35

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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.