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Finding the Fourth Proportional to 584,143.30, 818,981.60 and 584,143.30

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Solution

The fourth proportional to 584,143.30, 818,981.60 and 584,143.30 is: 818,981.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,143.30 : 818,981.60 = 584,143.30 : x
  2. Step 2: Convert to fraction form
    584,143.30/818,981.60 = 584,143.30/x
  3. Step 3: Cross multiply
    584,143.30x = 818,981.60 × 584,143.30
  4. Step 4: Simplify right side
    584,143.30x = 478,402,614,463.28
  5. Step 5: Solve for x
    x = 478,402,614,463.28/584,143.30
  6. Step 6: Final answer
    x = 818,981.60

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Double scale
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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.