Home / 579,366,915.15-869,050,372.73-515,877,430.35

Finding the Fourth Proportional to 579,366,915.15, 869,050,372.73 and 515,877,430.35

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Solution

The fourth proportional to 579,366,915.15, 869,050,372.73 and 515,877,430.35 is: 773,816,145.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,366,915.15 : 869,050,372.73 = 515,877,430.35 : x
  2. Step 2: Convert to fraction form
    579,366,915.15/869,050,372.73 = 515,877,430.35/x
  3. Step 3: Cross multiply
    579,366,915.15x = 869,050,372.73 × 515,877,430.35
  4. Step 4: Simplify right side
    579,366,915.15x = 448,323,473,128,662,144
  5. Step 5: Solve for x
    x = 448,323,473,128,662,144/579,366,915.15
  6. Step 6: Final answer
    x = 773,816,145.53

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Double scale
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Similar ratio
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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.