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Finding the Fourth Proportional to 586,340,421.40, 879,510,632.10 and 448,590,914.20

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Solution

The fourth proportional to 586,340,421.40, 879,510,632.10 and 448,590,914.20 is: 672,886,371.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,340,421.40 : 879,510,632.10 = 448,590,914.20 : x
  2. Step 2: Convert to fraction form
    586,340,421.40/879,510,632.10 = 448,590,914.20/x
  3. Step 3: Cross multiply
    586,340,421.40x = 879,510,632.10 × 448,590,914.20
  4. Step 4: Simplify right side
    586,340,421.40x = 394,540,478,502,358,848
  5. Step 5: Solve for x
    x = 394,540,478,502,358,848/586,340,421.40
  6. Step 6: Final answer
    x = 672,886,371.30

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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.