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Finding the Fourth Proportional to 934,502.40, 1,402,444.80 and 618,854.40

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Solution

The fourth proportional to 934,502.40, 1,402,444.80 and 618,854.40 is: 928,739.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    934,502.40 : 1,402,444.80 = 618,854.40 : x
  2. Step 2: Convert to fraction form
    934,502.40/1,402,444.80 = 618,854.40/x
  3. Step 3: Cross multiply
    934,502.40x = 1,402,444.80 × 618,854.40
  4. Step 4: Simplify right side
    934,502.40x = 867,909,135,237.12
  5. Step 5: Solve for x
    x = 867,909,135,237.12/934,502.40
  6. Step 6: Final answer
    x = 928,739.33

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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.