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Finding the Fourth Proportional to 578,547.30, 864,302.72 and 374,481.06

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Solution

The fourth proportional to 578,547.30, 864,302.72 and 374,481.06 is: 559,444.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,547.30 : 864,302.72 = 374,481.06 : x
  2. Step 2: Convert to fraction form
    578,547.30/864,302.72 = 374,481.06/x
  3. Step 3: Cross multiply
    578,547.30x = 864,302.72 × 374,481.06
  4. Step 4: Simplify right side
    578,547.30x = 323,665,002,242.02
  5. Step 5: Solve for x
    x = 323,665,002,242.02/578,547.30
  6. Step 6: Final answer
    x = 559,444.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.