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Finding the Fourth Proportional to 977,369.80, 1,466,054.70 and 346,347.40

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Solution

The fourth proportional to 977,369.80, 1,466,054.70 and 346,347.40 is: 519,521.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,369.80 : 1,466,054.70 = 346,347.40 : x
  2. Step 2: Convert to fraction form
    977,369.80/1,466,054.70 = 346,347.40/x
  3. Step 3: Cross multiply
    977,369.80x = 1,466,054.70 × 346,347.40
  4. Step 4: Simplify right side
    977,369.80x = 507,764,233,602.78
  5. Step 5: Solve for x
    x = 507,764,233,602.78/977,369.80
  6. Step 6: Final answer
    x = 519,521.10

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Double scale
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Similar ratio
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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.