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Finding the Fourth Proportional to 553,663,820.10, 830,495,730.15 and 553,663,820.10

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Solution

The fourth proportional to 553,663,820.10, 830,495,730.15 and 553,663,820.10 is: 830,495,730.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,663,820.10 : 830,495,730.15 = 553,663,820.10 : x
  2. Step 2: Convert to fraction form
    553,663,820.10/830,495,730.15 = 553,663,820.10/x
  3. Step 3: Cross multiply
    553,663,820.10x = 830,495,730.15 × 553,663,820.10
  4. Step 4: Simplify right side
    553,663,820.10x = 459,815,438,531,587,776
  5. Step 5: Solve for x
    x = 459,815,438,531,587,776/553,663,820.10
  6. Step 6: Final answer
    x = 830,495,730.15

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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.