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Finding the Fourth Proportional to 710,005.80, 977,322.06 and 619,201.56

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Solution

The fourth proportional to 710,005.80, 977,322.06 and 619,201.56 is: 852,330.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,005.80 : 977,322.06 = 619,201.56 : x
  2. Step 2: Convert to fraction form
    710,005.80/977,322.06 = 619,201.56/x
  3. Step 3: Cross multiply
    710,005.80x = 977,322.06 × 619,201.56
  4. Step 4: Simplify right side
    710,005.80x = 605,159,344,174.41
  5. Step 5: Solve for x
    x = 605,159,344,174.41/710,005.80
  6. Step 6: Final answer
    x = 852,330.14

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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.