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Finding the Fourth Proportional to 907,291,220.45, 1,360,936,830.68 and 907,291,220.45

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Solution

The fourth proportional to 907,291,220.45, 1,360,936,830.68 and 907,291,220.45 is: 1,360,936,830.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,291,220.45 : 1,360,936,830.68 = 907,291,220.45 : x
  2. Step 2: Convert to fraction form
    907,291,220.45/1,360,936,830.68 = 907,291,220.45/x
  3. Step 3: Cross multiply
    907,291,220.45x = 1,360,936,830.68 × 907,291,220.45
  4. Step 4: Simplify right side
    907,291,220.45x = 1,234,766,038,063,012,352
  5. Step 5: Solve for x
    x = 1,234,766,038,063,012,352/907,291,220.45
  6. Step 6: Final answer
    x = 1,360,936,830.68

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Double scale
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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.