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Finding the Fourth Proportional to 630,422,101.80, 943,082,235.90 and 553,894,597.80

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Solution

The fourth proportional to 630,422,101.80, 943,082,235.90 and 553,894,597.80 is: 828,600,637.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,422,101.80 : 943,082,235.90 = 553,894,597.80 : x
  2. Step 2: Convert to fraction form
    630,422,101.80/943,082,235.90 = 553,894,597.80/x
  3. Step 3: Cross multiply
    630,422,101.80x = 943,082,235.90 × 553,894,597.80
  4. Step 4: Simplify right side
    630,422,101.80x = 522,368,155,746,155,136
  5. Step 5: Solve for x
    x = 522,368,155,746,155,136/630,422,101.80
  6. Step 6: Final answer
    x = 828,600,637.98

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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.