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Finding the Fourth Proportional to 615,099.40, 922,649.10 and 552,891.40

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Solution

The fourth proportional to 615,099.40, 922,649.10 and 552,891.40 is: 829,337.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,099.40 : 922,649.10 = 552,891.40 : x
  2. Step 2: Convert to fraction form
    615,099.40/922,649.10 = 552,891.40/x
  3. Step 3: Cross multiply
    615,099.40x = 922,649.10 × 552,891.40
  4. Step 4: Simplify right side
    615,099.40x = 510,124,752,607.74
  5. Step 5: Solve for x
    x = 510,124,752,607.74/615,099.40
  6. Step 6: Final answer
    x = 829,337.10

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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.