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Finding the Fourth Proportional to 579,683.60, 813,031.60 and 579,683.60

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Solution

The fourth proportional to 579,683.60, 813,031.60 and 579,683.60 is: 813,031.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,683.60 : 813,031.60 = 579,683.60 : x
  2. Step 2: Convert to fraction form
    579,683.60/813,031.60 = 579,683.60/x
  3. Step 3: Cross multiply
    579,683.60x = 813,031.60 × 579,683.60
  4. Step 4: Simplify right side
    579,683.60x = 471,301,084,801.76
  5. Step 5: Solve for x
    x = 471,301,084,801.76/579,683.60
  6. Step 6: Final answer
    x = 813,031.60

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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.