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Finding the Fourth Proportional to 586,834,278.40, 879,495,590.40 and 449,840,598.40

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Solution

The fourth proportional to 586,834,278.40, 879,495,590.40 and 449,840,598.40 is: 674,181,514.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,834,278.40 : 879,495,590.40 = 449,840,598.40 : x
  2. Step 2: Convert to fraction form
    586,834,278.40/879,495,590.40 = 449,840,598.40/x
  3. Step 3: Cross multiply
    586,834,278.40x = 879,495,590.40 × 449,840,598.40
  4. Step 4: Simplify right side
    586,834,278.40x = 395,632,822,675,697,280
  5. Step 5: Solve for x
    x = 395,632,822,675,697,280/586,834,278.40
  6. Step 6: Final answer
    x = 674,181,514.68

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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.