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Finding the Fourth Proportional to 366,607,531.80, 549,911,297.70 and 319,256,138.70

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Solution

The fourth proportional to 366,607,531.80, 549,911,297.70 and 319,256,138.70 is: 478,884,208.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,607,531.80 : 549,911,297.70 = 319,256,138.70 : x
  2. Step 2: Convert to fraction form
    366,607,531.80/549,911,297.70 = 319,256,138.70/x
  3. Step 3: Cross multiply
    366,607,531.80x = 549,911,297.70 × 319,256,138.70
  4. Step 4: Simplify right side
    366,607,531.80x = 175,562,557,531,208,192
  5. Step 5: Solve for x
    x = 175,562,557,531,208,192/366,607,531.80
  6. Step 6: Final answer
    x = 478,884,208.05

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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.