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Finding the Fourth Proportional to 710,994, 1,066,884.64 and 425,984.16

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Solution

The fourth proportional to 710,994, 1,066,884.64 and 425,984.16 is: 639,212.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,994 : 1,066,884.64 = 425,984.16 : x
  2. Step 2: Convert to fraction form
    710,994/1,066,884.64 = 425,984.16/x
  3. Step 3: Cross multiply
    710,994x = 1,066,884.64 × 425,984.16
  4. Step 4: Simplify right side
    710,994x = 454,475,957,187.30
  5. Step 5: Solve for x
    x = 454,475,957,187.30/710,994
  6. Step 6: Final answer
    x = 639,212.09

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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.