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Finding the Fourth Proportional to 615,196.80, 922,795.20 and 366,364.80

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Solution

The fourth proportional to 615,196.80, 922,795.20 and 366,364.80 is: 549,547.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,196.80 : 922,795.20 = 366,364.80 : x
  2. Step 2: Convert to fraction form
    615,196.80/922,795.20 = 366,364.80/x
  3. Step 3: Cross multiply
    615,196.80x = 922,795.20 × 366,364.80
  4. Step 4: Simplify right side
    615,196.80x = 338,079,678,888.96
  5. Step 5: Solve for x
    x = 338,079,678,888.96/615,196.80
  6. Step 6: Final answer
    x = 549,547.20

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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.