Home / 578,989,663.60-868,484,495.40-517,767,660.40

Finding the Fourth Proportional to 578,989,663.60, 868,484,495.40 and 517,767,660.40

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Solution

The fourth proportional to 578,989,663.60, 868,484,495.40 and 517,767,660.40 is: 776,651,490.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,989,663.60 : 868,484,495.40 = 517,767,660.40 : x
  2. Step 2: Convert to fraction form
    578,989,663.60/868,484,495.40 = 517,767,660.40/x
  3. Step 3: Cross multiply
    578,989,663.60x = 868,484,495.40 × 517,767,660.40
  4. Step 4: Simplify right side
    578,989,663.60x = 449,673,185,276,932,544
  5. Step 5: Solve for x
    x = 449,673,185,276,932,544/578,989,663.60
  6. Step 6: Final answer
    x = 776,651,490.60

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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.