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Finding the Fourth Proportional to 579,197.41, 798,818.47 and 407,683.15

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Solution

The fourth proportional to 579,197.41, 798,818.47 and 407,683.15 is: 562,269.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,197.41 : 798,818.47 = 407,683.15 : x
  2. Step 2: Convert to fraction form
    579,197.41/798,818.47 = 407,683.15/x
  3. Step 3: Cross multiply
    579,197.41x = 798,818.47 × 407,683.15
  4. Step 4: Simplify right side
    579,197.41x = 325,664,830,127.78
  5. Step 5: Solve for x
    x = 325,664,830,127.78/579,197.41
  6. Step 6: Final answer
    x = 562,269.14

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Double scale
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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.