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Finding the Fourth Proportional to 528,070.40, 791,522.40 and 291,582.80

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Solution

The fourth proportional to 528,070.40, 791,522.40 and 291,582.80 is: 437,052.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,070.40 : 791,522.40 = 291,582.80 : x
  2. Step 2: Convert to fraction form
    528,070.40/791,522.40 = 291,582.80/x
  3. Step 3: Cross multiply
    528,070.40x = 791,522.40 × 291,582.80
  4. Step 4: Simplify right side
    528,070.40x = 230,794,317,654.72
  5. Step 5: Solve for x
    x = 230,794,317,654.72/528,070.40
  6. Step 6: Final answer
    x = 437,052.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.