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Finding the Fourth Proportional to 620,952.88, 930,547.23 and 478,258.42

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Solution

The fourth proportional to 620,952.88, 930,547.23 and 478,258.42 is: 716,708.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,952.88 : 930,547.23 = 478,258.42 : x
  2. Step 2: Convert to fraction form
    620,952.88/930,547.23 = 478,258.42/x
  3. Step 3: Cross multiply
    620,952.88x = 930,547.23 × 478,258.42
  4. Step 4: Simplify right side
    620,952.88x = 445,042,047,955.18
  5. Step 5: Solve for x
    x = 445,042,047,955.18/620,952.88
  6. Step 6: Final answer
    x = 716,708.24

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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.