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Finding the Fourth Proportional to 472,393,865.80, 708,590,798.70 and 373,758,416.20

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Solution

The fourth proportional to 472,393,865.80, 708,590,798.70 and 373,758,416.20 is: 560,637,624.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,393,865.80 : 708,590,798.70 = 373,758,416.20 : x
  2. Step 2: Convert to fraction form
    472,393,865.80/708,590,798.70 = 373,758,416.20/x
  3. Step 3: Cross multiply
    472,393,865.80x = 708,590,798.70 × 373,758,416.20
  4. Step 4: Simplify right side
    472,393,865.80x = 264,841,774,656,005,024
  5. Step 5: Solve for x
    x = 264,841,774,656,005,024/472,393,865.80
  6. Step 6: Final answer
    x = 560,637,624.30

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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.