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Finding the Fourth Proportional to 704,598.93, 972,598.68 and 418,118.94

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Solution

The fourth proportional to 704,598.93, 972,598.68 and 418,118.94 is: 577,153.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,598.93 : 972,598.68 = 418,118.94 : x
  2. Step 2: Convert to fraction form
    704,598.93/972,598.68 = 418,118.94/x
  3. Step 3: Cross multiply
    704,598.93x = 972,598.68 × 418,118.94
  4. Step 4: Simplify right side
    704,598.93x = 406,661,929,127.00
  5. Step 5: Solve for x
    x = 406,661,929,127.00/704,598.93
  6. Step 6: Final answer
    x = 577,153.77

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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.