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Finding the Fourth Proportional to 579,063,963.40, 868,595,945.10 and 488,364,699.40

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Solution

The fourth proportional to 579,063,963.40, 868,595,945.10 and 488,364,699.40 is: 732,547,049.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,063,963.40 : 868,595,945.10 = 488,364,699.40 : x
  2. Step 2: Convert to fraction form
    579,063,963.40/868,595,945.10 = 488,364,699.40/x
  3. Step 3: Cross multiply
    579,063,963.40x = 868,595,945.10 × 488,364,699.40
  4. Step 4: Simplify right side
    579,063,963.40x = 424,191,597,628,820,416
  5. Step 5: Solve for x
    x = 424,191,597,628,820,416/579,063,963.40
  6. Step 6: Final answer
    x = 732,547,049.10

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1.5x scale

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.