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Finding the Fourth Proportional to 614,626,987.79, 847,649,206.79 and 435,656,882.72

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Solution

The fourth proportional to 614,626,987.79, 847,649,206.79 and 435,656,882.72 is: 600,826,547.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,626,987.79 : 847,649,206.79 = 435,656,882.72 : x
  2. Step 2: Convert to fraction form
    614,626,987.79/847,649,206.79 = 435,656,882.72/x
  3. Step 3: Cross multiply
    614,626,987.79x = 847,649,206.79 × 435,656,882.72
  4. Step 4: Simplify right side
    614,626,987.79x = 369,284,211,063,795,520
  5. Step 5: Solve for x
    x = 369,284,211,063,795,520/614,626,987.79
  6. Step 6: Final answer
    x = 600,826,547.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.