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Finding the Fourth Proportional to 560,688.27, 773,722.91 and 318,948.23

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Solution

The fourth proportional to 560,688.27, 773,722.91 and 318,948.23 is: 440,133.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,688.27 : 773,722.91 = 318,948.23 : x
  2. Step 2: Convert to fraction form
    560,688.27/773,722.91 = 318,948.23/x
  3. Step 3: Cross multiply
    560,688.27x = 773,722.91 × 318,948.23
  4. Step 4: Simplify right side
    560,688.27x = 246,777,547,191.59
  5. Step 5: Solve for x
    x = 246,777,547,191.59/560,688.27
  6. Step 6: Final answer
    x = 440,133.24

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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.