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Finding the Fourth Proportional to 626,931,807.20, 940,397,710.80 and 626,931,807.20

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Solution

The fourth proportional to 626,931,807.20, 940,397,710.80 and 626,931,807.20 is: 940,397,710.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,931,807.20 : 940,397,710.80 = 626,931,807.20 : x
  2. Step 2: Convert to fraction form
    626,931,807.20/940,397,710.80 = 626,931,807.20/x
  3. Step 3: Cross multiply
    626,931,807.20x = 940,397,710.80 × 626,931,807.20
  4. Step 4: Simplify right side
    626,931,807.20x = 589,565,236,318,587,008
  5. Step 5: Solve for x
    x = 589,565,236,318,587,008/626,931,807.20
  6. Step 6: Final answer
    x = 940,397,710.80

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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.