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Finding the Fourth Proportional to 977,710.60, 1,466,711.70 and 346,574.80

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Solution

The fourth proportional to 977,710.60, 1,466,711.70 and 346,574.80 is: 519,913.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,710.60 : 1,466,711.70 = 346,574.80 : x
  2. Step 2: Convert to fraction form
    977,710.60/1,466,711.70 = 346,574.80/x
  3. Step 3: Cross multiply
    977,710.60x = 1,466,711.70 × 346,574.80
  4. Step 4: Simplify right side
    977,710.60x = 508,325,314,085.16
  5. Step 5: Solve for x
    x = 508,325,314,085.16/977,710.60
  6. Step 6: Final answer
    x = 519,913.88

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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.