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Finding the Fourth Proportional to 579,683.10, 813,030.90 and 579,683.10

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Solution

The fourth proportional to 579,683.10, 813,030.90 and 579,683.10 is: 813,030.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,683.10 : 813,030.90 = 579,683.10 : x
  2. Step 2: Convert to fraction form
    579,683.10/813,030.90 = 579,683.10/x
  3. Step 3: Cross multiply
    579,683.10x = 813,030.90 × 579,683.10
  4. Step 4: Simplify right side
    579,683.10x = 471,300,272,507.79
  5. Step 5: Solve for x
    x = 471,300,272,507.79/579,683.10
  6. Step 6: Final answer
    x = 813,030.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.