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Finding the Fourth Proportional to 586,588.94, 809,492.73 and 318,316.94

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Solution

The fourth proportional to 586,588.94, 809,492.73 and 318,316.94 is: 439,277.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,588.94 : 809,492.73 = 318,316.94 : x
  2. Step 2: Convert to fraction form
    586,588.94/809,492.73 = 318,316.94/x
  3. Step 3: Cross multiply
    586,588.94x = 809,492.73 × 318,316.94
  4. Step 4: Simplify right side
    586,588.94x = 257,675,248,765.85
  5. Step 5: Solve for x
    x = 257,675,248,765.85/586,588.94
  6. Step 6: Final answer
    x = 439,277.37

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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.