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Finding the Fourth Proportional to 615,609.84, 849,313.44 and 360,868.08

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Solution

The fourth proportional to 615,609.84, 849,313.44 and 360,868.08 is: 497,864.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,609.84 : 849,313.44 = 360,868.08 : x
  2. Step 2: Convert to fraction form
    615,609.84/849,313.44 = 360,868.08/x
  3. Step 3: Cross multiply
    615,609.84x = 849,313.44 × 360,868.08
  4. Step 4: Simplify right side
    615,609.84x = 306,490,110,411.00
  5. Step 5: Solve for x
    x = 306,490,110,411.00/615,609.84
  6. Step 6: Final answer
    x = 497,864.22

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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.