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Finding the Fourth Proportional to 977,367.80, 1,466,051.70 and 346,345.40

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Solution

The fourth proportional to 977,367.80, 1,466,051.70 and 346,345.40 is: 519,518.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,367.80 : 1,466,051.70 = 346,345.40 : x
  2. Step 2: Convert to fraction form
    977,367.80/1,466,051.70 = 346,345.40/x
  3. Step 3: Cross multiply
    977,367.80x = 1,466,051.70 × 346,345.40
  4. Step 4: Simplify right side
    977,367.80x = 507,760,262,457.18
  5. Step 5: Solve for x
    x = 507,760,262,457.18/977,367.80
  6. Step 6: Final answer
    x = 519,518.10

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Half scale
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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.