Home / 710,076,421.20-1,065,114,631.80-327,870,469.20

Finding the Fourth Proportional to 710,076,421.20, 1,065,114,631.80 and 327,870,469.20

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Solution

The fourth proportional to 710,076,421.20, 1,065,114,631.80 and 327,870,469.20 is: 491,805,703.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,076,421.20 : 1,065,114,631.80 = 327,870,469.20 : x
  2. Step 2: Convert to fraction form
    710,076,421.20/1,065,114,631.80 = 327,870,469.20/x
  3. Step 3: Cross multiply
    710,076,421.20x = 1,065,114,631.80 × 327,870,469.20
  4. Step 4: Simplify right side
    710,076,421.20x = 349,219,634,080,051,200
  5. Step 5: Solve for x
    x = 349,219,634,080,051,200/710,076,421.20
  6. Step 6: Final answer
    x = 491,805,703.80

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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.