Home / 545,243,541.94-757,515,811.63-538,705,820.80

Finding the Fourth Proportional to 545,243,541.94, 757,515,811.63 and 538,705,820.80

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Solution

The fourth proportional to 545,243,541.94, 757,515,811.63 and 538,705,820.80 is: 748,432,848.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,243,541.94 : 757,515,811.63 = 538,705,820.80 : x
  2. Step 2: Convert to fraction form
    545,243,541.94/757,515,811.63 = 538,705,820.80/x
  3. Step 3: Cross multiply
    545,243,541.94x = 757,515,811.63 × 538,705,820.80
  4. Step 4: Simplify right side
    545,243,541.94x = 408,078,177,073,117,312
  5. Step 5: Solve for x
    x = 408,078,177,073,117,312/545,243,541.94
  6. Step 6: Final answer
    x = 748,432,848.23

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.