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Finding the Fourth Proportional to 604,860,940.80, 907,291,411.20 and 604,860,940.80

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Solution

The fourth proportional to 604,860,940.80, 907,291,411.20 and 604,860,940.80 is: 907,291,411.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,860,940.80 : 907,291,411.20 = 604,860,940.80 : x
  2. Step 2: Convert to fraction form
    604,860,940.80/907,291,411.20 = 604,860,940.80/x
  3. Step 3: Cross multiply
    604,860,940.80x = 907,291,411.20 × 604,860,940.80
  4. Step 4: Simplify right side
    604,860,940.80x = 548,785,136,558,191,616
  5. Step 5: Solve for x
    x = 548,785,136,558,191,616/604,860,940.80
  6. Step 6: Final answer
    x = 907,291,411.20

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Double scale
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Similar ratio
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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.