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Finding the Fourth Proportional to 611,317,701.91, 915,254,585.61 and 549,330,423.67

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Solution

The fourth proportional to 611,317,701.91, 915,254,585.61 and 549,330,423.67 is: 822,448,274.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,317,701.91 : 915,254,585.61 = 549,330,423.67 : x
  2. Step 2: Convert to fraction form
    611,317,701.91/915,254,585.61 = 549,330,423.67/x
  3. Step 3: Cross multiply
    611,317,701.91x = 915,254,585.61 × 549,330,423.67
  4. Step 4: Simplify right side
    611,317,701.91x = 502,777,189,279,051,584
  5. Step 5: Solve for x
    x = 502,777,189,279,051,584/611,317,701.91
  6. Step 6: Final answer
    x = 822,448,274.78

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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.