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Finding the Fourth Proportional to 586,602.93, 809,512.05 and 318,330.93

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Solution

The fourth proportional to 586,602.93, 809,512.05 and 318,330.93 is: 439,296.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,602.93 : 809,512.05 = 318,330.93 : x
  2. Step 2: Convert to fraction form
    586,602.93/809,512.05 = 318,330.93/x
  3. Step 3: Cross multiply
    586,602.93x = 809,512.05 × 318,330.93
  4. Step 4: Simplify right side
    586,602.93x = 257,692,723,722.71
  5. Step 5: Solve for x
    x = 257,692,723,722.71/586,602.93
  6. Step 6: Final answer
    x = 439,296.69

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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.