Home / 772,459,880.40-1,065,865,402.38-454,983,337.86

Finding the Fourth Proportional to 772,459,880.40, 1,065,865,402.38 and 454,983,337.86

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Solution

The fourth proportional to 772,459,880.40, 1,065,865,402.38 and 454,983,337.86 is: 627,800,887.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,459,880.40 : 1,065,865,402.38 = 454,983,337.86 : x
  2. Step 2: Convert to fraction form
    772,459,880.40/1,065,865,402.38 = 454,983,337.86/x
  3. Step 3: Cross multiply
    772,459,880.40x = 1,065,865,402.38 × 454,983,337.86
  4. Step 4: Simplify right side
    772,459,880.40x = 484,950,998,484,344,384
  5. Step 5: Solve for x
    x = 484,950,998,484,344,384/772,459,880.40
  6. Step 6: Final answer
    x = 627,800,887.51

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Double scale
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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.