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Finding the Fourth Proportional to 575,492,603.80, 863,238,905.70 and 403,164,002.20

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Solution

The fourth proportional to 575,492,603.80, 863,238,905.70 and 403,164,002.20 is: 604,746,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,492,603.80 : 863,238,905.70 = 403,164,002.20 : x
  2. Step 2: Convert to fraction form
    575,492,603.80/863,238,905.70 = 403,164,002.20/x
  3. Step 3: Cross multiply
    575,492,603.80x = 863,238,905.70 × 403,164,002.20
  4. Step 4: Simplify right side
    575,492,603.80x = 348,026,852,076,760,384
  5. Step 5: Solve for x
    x = 348,026,852,076,760,384/575,492,603.80
  6. Step 6: Final answer
    x = 604,746,003.30

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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.