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Finding the Fourth Proportional to 5,280,397,778,960, 7,920,596,668,440 and 5,280,397,778,960

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Solution

The fourth proportional to 5,280,397,778,960, 7,920,596,668,440 and 5,280,397,778,960 is: 7,920,596,668,440

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280,397,778,960 : 7,920,596,668,440 = 5,280,397,778,960 : x
  2. Step 2: Convert to fraction form
    5,280,397,778,960/7,920,596,668,440 = 5,280,397,778,960/x
  3. Step 3: Cross multiply
    5,280,397,778,960x = 7,920,596,668,440 × 5,280,397,778,960
  4. Step 4: Simplify right side
    5,280,397,778,960x = 41,823,901,056,068,549,091,524,608
  5. Step 5: Solve for x
    x = 41,823,901,056,068,549,091,524,608/5,280,397,778,960
  6. Step 6: Final answer
    x = 7,920,596,668,440

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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.