Home / 578,989,659.60-868,484,489.40-517,767,656.40

Finding the Fourth Proportional to 578,989,659.60, 868,484,489.40 and 517,767,656.40

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Solution

The fourth proportional to 578,989,659.60, 868,484,489.40 and 517,767,656.40 is: 776,651,484.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,989,659.60 : 868,484,489.40 = 517,767,656.40 : x
  2. Step 2: Convert to fraction form
    578,989,659.60/868,484,489.40 = 517,767,656.40/x
  3. Step 3: Cross multiply
    578,989,659.60x = 868,484,489.40 × 517,767,656.40
  4. Step 4: Simplify right side
    578,989,659.60x = 449,673,178,696,388,608
  5. Step 5: Solve for x
    x = 449,673,178,696,388,608/578,989,659.60
  6. Step 6: Final answer
    x = 776,651,484.60

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Double scale
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Similar ratio
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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.