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Finding the Fourth Proportional to 610,382,980.80, 915,630,458.40 and 201,440,030.40

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Solution

The fourth proportional to 610,382,980.80, 915,630,458.40 and 201,440,030.40 is: 302,178,522.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,382,980.80 : 915,630,458.40 = 201,440,030.40 : x
  2. Step 2: Convert to fraction form
    610,382,980.80/915,630,458.40 = 201,440,030.40/x
  3. Step 3: Cross multiply
    610,382,980.80x = 915,630,458.40 × 201,440,030.40
  4. Step 4: Simplify right side
    610,382,980.80x = 184,444,627,375,261,952
  5. Step 5: Solve for x
    x = 184,444,627,375,261,952/610,382,980.80
  6. Step 6: Final answer
    x = 302,178,522.63

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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.