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Finding the Fourth Proportional to 346,703.40, 520,055.10 and 97,385.40

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Solution

The fourth proportional to 346,703.40, 520,055.10 and 97,385.40 is: 146,078.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,703.40 : 520,055.10 = 97,385.40 : x
  2. Step 2: Convert to fraction form
    346,703.40/520,055.10 = 97,385.40/x
  3. Step 3: Cross multiply
    346,703.40x = 520,055.10 × 97,385.40
  4. Step 4: Simplify right side
    346,703.40x = 50,645,773,935.54
  5. Step 5: Solve for x
    x = 50,645,773,935.54/346,703.40
  6. Step 6: Final answer
    x = 146,078.10

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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.