Home / 719,566,198.58-993,001,686.28-389,541,337.58

Finding the Fourth Proportional to 719,566,198.58, 993,001,686.28 and 389,541,337.58

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Solution

The fourth proportional to 719,566,198.58, 993,001,686.28 and 389,541,337.58 is: 537,567,225.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,566,198.58 : 993,001,686.28 = 389,541,337.58 : x
  2. Step 2: Convert to fraction form
    719,566,198.58/993,001,686.28 = 389,541,337.58/x
  3. Step 3: Cross multiply
    719,566,198.58x = 993,001,686.28 × 389,541,337.58
  4. Step 4: Simplify right side
    719,566,198.58x = 386,815,205,092,706,688
  5. Step 5: Solve for x
    x = 386,815,205,092,706,688/719,566,198.58
  6. Step 6: Final answer
    x = 537,567,225.72

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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.