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Finding the Fourth Proportional to 584,909.80, 807,178.10 and 316,637.80

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Solution

The fourth proportional to 584,909.80, 807,178.10 and 316,637.80 is: 436,961.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,909.80 : 807,178.10 = 316,637.80 : x
  2. Step 2: Convert to fraction form
    584,909.80/807,178.10 = 316,637.80/x
  3. Step 3: Cross multiply
    584,909.80x = 807,178.10 × 316,637.80
  4. Step 4: Simplify right side
    584,909.80x = 255,583,097,792.18
  5. Step 5: Solve for x
    x = 255,583,097,792.18/584,909.80
  6. Step 6: Final answer
    x = 436,961.56

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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.