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Finding the Fourth Proportional to 586,071, 808,777.98 and 317,799

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Solution

The fourth proportional to 586,071, 808,777.98 and 317,799 is: 438,562.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,071 : 808,777.98 = 317,799 : x
  2. Step 2: Convert to fraction form
    586,071/808,777.98 = 317,799/x
  3. Step 3: Cross multiply
    586,071x = 808,777.98 × 317,799
  4. Step 4: Simplify right side
    586,071x = 257,028,833,266.02
  5. Step 5: Solve for x
    x = 257,028,833,266.02/586,071
  6. Step 6: Final answer
    x = 438,562.62

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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.