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Finding the Fourth Proportional to 295,645,699.20, 407,993,706 and 163,495,590

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Solution

The fourth proportional to 295,645,699.20, 407,993,706 and 163,495,590 is: 225,625,374.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,645,699.20 : 407,993,706 = 163,495,590 : x
  2. Step 2: Convert to fraction form
    295,645,699.20/407,993,706 = 163,495,590/x
  3. Step 3: Cross multiply
    295,645,699.20x = 407,993,706 × 163,495,590
  4. Step 4: Simplify right side
    295,645,699.20x = 66,705,171,678,756,544
  5. Step 5: Solve for x
    x = 66,705,171,678,756,544/295,645,699.20
  6. Step 6: Final answer
    x = 225,625,374.76

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1.5x scale

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.