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Finding the Fourth Proportional to 528,819,785.70, 793,229,678.55 and 528,819,785.70

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Solution

The fourth proportional to 528,819,785.70, 793,229,678.55 and 528,819,785.70 is: 793,229,678.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,819,785.70 : 793,229,678.55 = 528,819,785.70 : x
  2. Step 2: Convert to fraction form
    528,819,785.70/793,229,678.55 = 528,819,785.70/x
  3. Step 3: Cross multiply
    528,819,785.70x = 793,229,678.55 × 528,819,785.70
  4. Step 4: Simplify right side
    528,819,785.70x = 419,475,548,621,690,880
  5. Step 5: Solve for x
    x = 419,475,548,621,690,880/528,819,785.70
  6. Step 6: Final answer
    x = 793,229,678.55

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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.