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Finding the Fourth Proportional to 656,648.60, 984,972.90 and 570,043.40

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Solution

The fourth proportional to 656,648.60, 984,972.90 and 570,043.40 is: 855,065.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,648.60 : 984,972.90 = 570,043.40 : x
  2. Step 2: Convert to fraction form
    656,648.60/984,972.90 = 570,043.40/x
  3. Step 3: Cross multiply
    656,648.60x = 984,972.90 × 570,043.40
  4. Step 4: Simplify right side
    656,648.60x = 561,477,300,823.86
  5. Step 5: Solve for x
    x = 561,477,300,823.86/656,648.60
  6. Step 6: Final answer
    x = 855,065.10

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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.