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Finding the Fourth Proportional to 992,656,847.60, 1,488,985,271.40 and 625,324,828.40

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Solution

The fourth proportional to 992,656,847.60, 1,488,985,271.40 and 625,324,828.40 is: 937,987,242.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,656,847.60 : 1,488,985,271.40 = 625,324,828.40 : x
  2. Step 2: Convert to fraction form
    992,656,847.60/1,488,985,271.40 = 625,324,828.40/x
  3. Step 3: Cross multiply
    992,656,847.60x = 1,488,985,271.40 × 625,324,828.40
  4. Step 4: Simplify right side
    992,656,847.60x = 931,099,459,328,332,416
  5. Step 5: Solve for x
    x = 931,099,459,328,332,416/992,656,847.60
  6. Step 6: Final answer
    x = 937,987,242.60

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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.