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Finding the Fourth Proportional to 584,688.80, 806,873.12 and 316,416.80

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Solution

The fourth proportional to 584,688.80, 806,873.12 and 316,416.80 is: 436,656.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,688.80 : 806,873.12 = 316,416.80 : x
  2. Step 2: Convert to fraction form
    584,688.80/806,873.12 = 316,416.80/x
  3. Step 3: Cross multiply
    584,688.80x = 806,873.12 × 316,416.80
  4. Step 4: Simplify right side
    584,688.80x = 255,308,210,636.42
  5. Step 5: Solve for x
    x = 255,308,210,636.42/584,688.80
  6. Step 6: Final answer
    x = 436,656.58

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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.